ERC-721
Overview
Max Total Supply
1,859 DNFT
Holders
844
Market
Volume (24H)
N/A
Min Price (24H)
N/A
Max Price (24H)
N/A
Other Info
Token Contract
Balance
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# | Exchange | Pair | Price | 24H Volume | % Volume |
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Contract Name:
DegenNFT
Compiler Version
v0.8.10+commit.fc410830
Optimization Enabled:
Yes with 1000000 runs
Other Settings:
default evmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: GPL-2.0 pragma solidity ^0.8.10; import { ERC721 } from "@openzeppelin/contracts/token/ERC721/ERC721.sol"; import { IERC721 } from "@openzeppelin/contracts/token/ERC721/IERC721.sol"; import { IERC721Metadata } from "@openzeppelin/contracts/token/ERC721/extensions/IERC721Metadata.sol"; import { Address } from "@openzeppelin/contracts/utils/Address.sol"; import { AddressProvider } from "../core/AddressProvider.sol"; import { ContractsRegister } from "../core/ContractsRegister.sol"; import { ACLTrait } from "../core/ACLTrait.sol"; import { NotImplementedException } from "../interfaces/IErrors.sol"; import { ICreditManagerV2 } from "../interfaces/ICreditManagerV2.sol"; import { ICreditFacade } from "../interfaces/ICreditFacade.sol"; import { IDegenNFT } from "../interfaces/IDegenNFT.sol"; contract DegenNFT is ERC721, ACLTrait, IDegenNFT { using Address for address; /// @dev Stores the total number of tokens on holder accounts uint256 public override totalSupply; /// @dev address of Contracts register ContractsRegister internal immutable contractsRegister; /// @dev address of the current minter address public minter; /// @dev mapping from address to supported Credit Facade status mapping(address => bool) public isSupportedCreditFacade; /// @dev Stores the base URI for NFT metadata string public override baseURI; /// @dev contract version uint256 public constant override version = 1; /// @dev Restricts calls to this contract's minter modifier onlyMinter() { if (msg.sender != minter) { revert MinterOnlyException(); } _; } /// @dev Restricts calls to the configurator or Credit Facades modifier creditFacadeOrConfiguratorOnly() { if ( !isSupportedCreditFacade[msg.sender] && !_acl.isConfigurator(msg.sender) ) { revert CreditFacadeOrConfiguratorOnlyException(); } _; } constructor( address _addressProvider, string memory _name, string memory _symbol ) ACLTrait(_addressProvider) ERC721(_name, _symbol) // F:[DNFT-1] { contractsRegister = ContractsRegister( AddressProvider(_addressProvider).getContractsRegister() ); } function setMinter(address minter_) external configuratorOnly // F:[DNFT-2B] { minter = minter_; // F: [DNFT-5A] emit NewMinterSet(minter); } function addCreditFacade(address creditFacade_) external configuratorOnly // F: [DNFT-2C] { if (!isSupportedCreditFacade[creditFacade_]) { if (!creditFacade_.isContract()) { revert InvalidCreditFacadeException(); // F:[DNFT-6] } address creditManager; try ICreditFacade(creditFacade_).creditManager() returns ( ICreditManagerV2 cm ) { creditManager = address(cm); } catch { revert InvalidCreditFacadeException(); // F:[DNFT-6] } if ( !contractsRegister.isCreditManager(creditManager) || ICreditFacade(creditFacade_).degenNFT() != address(this) || ICreditManagerV2(creditManager).creditFacade() != creditFacade_ ) revert InvalidCreditFacadeException(); // F:[DNFT-6] isSupportedCreditFacade[creditFacade_] = true; // F: [DNFT-10] emit NewCreditFacadeAdded(creditFacade_); } } function removeCreditFacade(address creditFacade_) external configuratorOnly // F: [DNFT-2D] { if (isSupportedCreditFacade[creditFacade_]) { isSupportedCreditFacade[creditFacade_] = false; // F: [DNFT-9] emit NewCreditFacadeRemoved(creditFacade_); } } function setBaseUri(string calldata baseURI_) external configuratorOnly // F:[DNFT-2A] { baseURI = baseURI_; // F:[DNFT-5] } function _baseURI() internal view override returns (string memory) { return baseURI; // F:[DNFT-5] } /** * @dev See {IERC721Metadata-tokenURI}. */ function tokenURI(uint256 tokenId) public view override(IERC721Metadata, ERC721) returns (string memory) { require( _exists(tokenId), "ERC721Metadata: URI query for nonexistent token" ); return _baseURI(); } /// @dev Mints a specified amount of tokens to the address /// @param to Address the tokens are minted to /// @param amount The number of tokens to mint function mint(address to, uint256 amount) external override onlyMinter // F:[DNFT-3] { uint256 balanceBefore = balanceOf(to); // F:[DNFT-7] for (uint256 i; i < amount; ) { uint256 tokenId = (uint256(uint160(to)) << 40) + balanceBefore + i; // F:[DNFT-7] _mint(to, tokenId); // F:[DNFT-7] unchecked { ++i; // F:[DNFT-7] } } totalSupply += amount; // F:[DNFT-7] } /// @dev Burns a number of tokens from a specified address /// @param from The address a token will be burnt from /// @param amount The number of tokens to burn function burn(address from, uint256 amount) external override creditFacadeOrConfiguratorOnly // F:[DNFT-4] { uint256 balance = balanceOf(from); // F:[DNFT-8,8A] if (balance < amount) { revert InsufficientBalanceException(); // F:[DNFT-8A] } for (uint256 i; i < amount; ) { uint256 tokenId = (uint256(uint160(from)) << 40) + balance - i - 1; // F:[DNFT-8] _burn(tokenId); // F:[DNFT-8] unchecked { ++i; // F:[DNFT-8] } } totalSupply -= amount; // F:[DNFT-8] } /// @dev Not implemented as the token is not transferrable function approve(address, uint256) public pure virtual override(IERC721, ERC721) { revert NotImplementedException(); // F:[DNFT-11] } /// @dev Not implemented as the token is not transferrable function setApprovalForAll(address, bool) public pure virtual override(IERC721, ERC721) { revert NotImplementedException(); // F:[DNFT-11] } /// @dev Not implemented as the token is not transferrable function transferFrom( address, address, uint256 ) public pure virtual override(IERC721, ERC721) { revert NotImplementedException(); // F:[DNFT-11] } /// @dev Not implemented as the token is not transferrable function safeTransferFrom( address, address, uint256 ) public pure virtual override(IERC721, ERC721) { revert NotImplementedException(); // F:[DNFT-11] } /// @dev Not implemented as the token is not transferrable function safeTransferFrom( address, address, uint256, bytes memory ) public pure virtual override(IERC721, ERC721) { revert NotImplementedException(); // F:[DNFT-11] } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (utils/Address.sol) pragma solidity ^0.8.1; /** * @dev Collection of functions related to the address type */ library Address { /** * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * ==== * * [IMPORTANT] * ==== * You shouldn't rely on `isContract` to protect against flash loan attacks! * * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract * constructor. * ==== */ function isContract(address account) internal view returns (bool) { // This method relies on extcodesize/address.code.length, which returns 0 // for contracts in construction, since the code is only stored at the end // of the constructor execution. return account.code.length > 0; } /** * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. */ function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); (bool success, ) = recipient.call{value: amount}(""); require(success, "Address: unable to send value, recipient may have reverted"); } /** * @dev Performs a Solidity function call using a low level `call`. A * plain `call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ */ function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCall(target, data, "Address: low-level call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value ) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /** * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value, string memory errorMessage ) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); require(isContract(target), "Address: call to non-contract"); (bool success, bytes memory returndata) = target.call{value: value}(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { return functionStaticCall(target, data, "Address: low-level static call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall( address target, bytes memory data, string memory errorMessage ) internal view returns (bytes memory) { require(isContract(target), "Address: static call to non-contract"); (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { return functionDelegateCall(target, data, "Address: low-level delegate call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { require(isContract(target), "Address: delegate call to non-contract"); (bool success, bytes memory returndata) = target.delegatecall(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the * revert reason using the provided one. * * _Available since v4.3._ */ function verifyCallResult( bool success, bytes memory returndata, string memory errorMessage ) internal pure returns (bytes memory) { if (success) { return returndata; } else { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly /// @solidity memory-safe-assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (token/ERC721/ERC721.sol) pragma solidity ^0.8.0; import "./IERC721.sol"; import "./IERC721Receiver.sol"; import "./extensions/IERC721Metadata.sol"; import "../../utils/Address.sol"; import "../../utils/Context.sol"; import "../../utils/Strings.sol"; import "../../utils/introspection/ERC165.sol"; /** * @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including * the Metadata extension, but not including the Enumerable extension, which is available separately as * {ERC721Enumerable}. */ contract ERC721 is Context, ERC165, IERC721, IERC721Metadata { using Address for address; using Strings for uint256; // Token name string private _name; // Token symbol string private _symbol; // Mapping from token ID to owner address mapping(uint256 => address) private _owners; // Mapping owner address to token count mapping(address => uint256) private _balances; // Mapping from token ID to approved address mapping(uint256 => address) private _tokenApprovals; // Mapping from owner to operator approvals mapping(address => mapping(address => bool)) private _operatorApprovals; /** * @dev Initializes the contract by setting a `name` and a `symbol` to the token collection. */ constructor(string memory name_, string memory symbol_) { _name = name_; _symbol = symbol_; } /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) { return interfaceId == type(IERC721).interfaceId || interfaceId == type(IERC721Metadata).interfaceId || super.supportsInterface(interfaceId); } /** * @dev See {IERC721-balanceOf}. */ function balanceOf(address owner) public view virtual override returns (uint256) { require(owner != address(0), "ERC721: address zero is not a valid owner"); return _balances[owner]; } /** * @dev See {IERC721-ownerOf}. */ function ownerOf(uint256 tokenId) public view virtual override returns (address) { address owner = _owners[tokenId]; require(owner != address(0), "ERC721: invalid token ID"); return owner; } /** * @dev See {IERC721Metadata-name}. */ function name() public view virtual override returns (string memory) { return _name; } /** * @dev See {IERC721Metadata-symbol}. */ function symbol() public view virtual override returns (string memory) { return _symbol; } /** * @dev See {IERC721Metadata-tokenURI}. */ function tokenURI(uint256 tokenId) public view virtual override returns (string memory) { _requireMinted(tokenId); string memory baseURI = _baseURI(); return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : ""; } /** * @dev Base URI for computing {tokenURI}. If set, the resulting URI for each * token will be the concatenation of the `baseURI` and the `tokenId`. Empty * by default, can be overridden in child contracts. */ function _baseURI() internal view virtual returns (string memory) { return ""; } /** * @dev See {IERC721-approve}. */ function approve(address to, uint256 tokenId) public virtual override { address owner = ERC721.ownerOf(tokenId); require(to != owner, "ERC721: approval to current owner"); require( _msgSender() == owner || isApprovedForAll(owner, _msgSender()), "ERC721: approve caller is not token owner nor approved for all" ); _approve(to, tokenId); } /** * @dev See {IERC721-getApproved}. */ function getApproved(uint256 tokenId) public view virtual override returns (address) { _requireMinted(tokenId); return _tokenApprovals[tokenId]; } /** * @dev See {IERC721-setApprovalForAll}. */ function setApprovalForAll(address operator, bool approved) public virtual override { _setApprovalForAll(_msgSender(), operator, approved); } /** * @dev See {IERC721-isApprovedForAll}. */ function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) { return _operatorApprovals[owner][operator]; } /** * @dev See {IERC721-transferFrom}. */ function transferFrom( address from, address to, uint256 tokenId ) public virtual override { //solhint-disable-next-line max-line-length require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: caller is not token owner nor approved"); _transfer(from, to, tokenId); } /** * @dev See {IERC721-safeTransferFrom}. */ function safeTransferFrom( address from, address to, uint256 tokenId ) public virtual override { safeTransferFrom(from, to, tokenId, ""); } /** * @dev See {IERC721-safeTransferFrom}. */ function safeTransferFrom( address from, address to, uint256 tokenId, bytes memory data ) public virtual override { require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: caller is not token owner nor approved"); _safeTransfer(from, to, tokenId, data); } /** * @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. * * `data` is additional data, it has no specified format and it is sent in call to `to`. * * This internal function is equivalent to {safeTransferFrom}, and can be used to e.g. * implement alternative mechanisms to perform token transfer, such as signature-based. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function _safeTransfer( address from, address to, uint256 tokenId, bytes memory data ) internal virtual { _transfer(from, to, tokenId); require(_checkOnERC721Received(from, to, tokenId, data), "ERC721: transfer to non ERC721Receiver implementer"); } /** * @dev Returns whether `tokenId` exists. * * Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}. * * Tokens start existing when they are minted (`_mint`), * and stop existing when they are burned (`_burn`). */ function _exists(uint256 tokenId) internal view virtual returns (bool) { return _owners[tokenId] != address(0); } /** * @dev Returns whether `spender` is allowed to manage `tokenId`. * * Requirements: * * - `tokenId` must exist. */ function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) { address owner = ERC721.ownerOf(tokenId); return (spender == owner || isApprovedForAll(owner, spender) || getApproved(tokenId) == spender); } /** * @dev Safely mints `tokenId` and transfers it to `to`. * * Requirements: * * - `tokenId` must not exist. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function _safeMint(address to, uint256 tokenId) internal virtual { _safeMint(to, tokenId, ""); } /** * @dev Same as {xref-ERC721-_safeMint-address-uint256-}[`_safeMint`], with an additional `data` parameter which is * forwarded in {IERC721Receiver-onERC721Received} to contract recipients. */ function _safeMint( address to, uint256 tokenId, bytes memory data ) internal virtual { _mint(to, tokenId); require( _checkOnERC721Received(address(0), to, tokenId, data), "ERC721: transfer to non ERC721Receiver implementer" ); } /** * @dev Mints `tokenId` and transfers it to `to`. * * WARNING: Usage of this method is discouraged, use {_safeMint} whenever possible * * Requirements: * * - `tokenId` must not exist. * - `to` cannot be the zero address. * * Emits a {Transfer} event. */ function _mint(address to, uint256 tokenId) internal virtual { require(to != address(0), "ERC721: mint to the zero address"); require(!_exists(tokenId), "ERC721: token already minted"); _beforeTokenTransfer(address(0), to, tokenId); _balances[to] += 1; _owners[tokenId] = to; emit Transfer(address(0), to, tokenId); _afterTokenTransfer(address(0), to, tokenId); } /** * @dev Destroys `tokenId`. * The approval is cleared when the token is burned. * * Requirements: * * - `tokenId` must exist. * * Emits a {Transfer} event. */ function _burn(uint256 tokenId) internal virtual { address owner = ERC721.ownerOf(tokenId); _beforeTokenTransfer(owner, address(0), tokenId); // Clear approvals _approve(address(0), tokenId); _balances[owner] -= 1; delete _owners[tokenId]; emit Transfer(owner, address(0), tokenId); _afterTokenTransfer(owner, address(0), tokenId); } /** * @dev Transfers `tokenId` from `from` to `to`. * As opposed to {transferFrom}, this imposes no restrictions on msg.sender. * * Requirements: * * - `to` cannot be the zero address. * - `tokenId` token must be owned by `from`. * * Emits a {Transfer} event. */ function _transfer( address from, address to, uint256 tokenId ) internal virtual { require(ERC721.ownerOf(tokenId) == from, "ERC721: transfer from incorrect owner"); require(to != address(0), "ERC721: transfer to the zero address"); _beforeTokenTransfer(from, to, tokenId); // Clear approvals from the previous owner _approve(address(0), tokenId); _balances[from] -= 1; _balances[to] += 1; _owners[tokenId] = to; emit Transfer(from, to, tokenId); _afterTokenTransfer(from, to, tokenId); } /** * @dev Approve `to` to operate on `tokenId` * * Emits an {Approval} event. */ function _approve(address to, uint256 tokenId) internal virtual { _tokenApprovals[tokenId] = to; emit Approval(ERC721.ownerOf(tokenId), to, tokenId); } /** * @dev Approve `operator` to operate on all of `owner` tokens * * Emits an {ApprovalForAll} event. */ function _setApprovalForAll( address owner, address operator, bool approved ) internal virtual { require(owner != operator, "ERC721: approve to caller"); _operatorApprovals[owner][operator] = approved; emit ApprovalForAll(owner, operator, approved); } /** * @dev Reverts if the `tokenId` has not been minted yet. */ function _requireMinted(uint256 tokenId) internal view virtual { require(_exists(tokenId), "ERC721: invalid token ID"); } /** * @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address. * The call is not executed if the target address is not a contract. * * @param from address representing the previous owner of the given token ID * @param to target address that will receive the tokens * @param tokenId uint256 ID of the token to be transferred * @param data bytes optional data to send along with the call * @return bool whether the call correctly returned the expected magic value */ function _checkOnERC721Received( address from, address to, uint256 tokenId, bytes memory data ) private returns (bool) { if (to.isContract()) { try IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, data) returns (bytes4 retval) { return retval == IERC721Receiver.onERC721Received.selector; } catch (bytes memory reason) { if (reason.length == 0) { revert("ERC721: transfer to non ERC721Receiver implementer"); } else { /// @solidity memory-safe-assembly assembly { revert(add(32, reason), mload(reason)) } } } } else { return true; } } /** * @dev Hook that is called before any token transfer. This includes minting * and burning. * * Calling conditions: * * - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be * transferred to `to`. * - When `from` is zero, `tokenId` will be minted for `to`. * - When `to` is zero, ``from``'s `tokenId` 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 tokenId ) internal virtual {} /** * @dev Hook that is called after any transfer of tokens. This includes * minting and burning. * * Calling conditions: * * - when `from` and `to` are both non-zero. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _afterTokenTransfer( address from, address to, uint256 tokenId ) internal virtual {} }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (token/ERC721/IERC721.sol) pragma solidity ^0.8.0; import "../../utils/introspection/IERC165.sol"; /** * @dev Required interface of an ERC721 compliant contract. */ interface IERC721 is IERC165 { /** * @dev Emitted when `tokenId` token is transferred from `from` to `to`. */ event Transfer(address indexed from, address indexed to, uint256 indexed tokenId); /** * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token. */ event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId); /** * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets. */ event ApprovalForAll(address indexed owner, address indexed operator, bool approved); /** * @dev Returns the number of tokens in ``owner``'s account. */ function balanceOf(address owner) external view returns (uint256 balance); /** * @dev Returns the owner of the `tokenId` token. * * Requirements: * * - `tokenId` must exist. */ function ownerOf(uint256 tokenId) external view returns (address owner); /** * @dev Safely transfers `tokenId` token from `from` to `to`. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function safeTransferFrom( address from, address to, uint256 tokenId, bytes calldata data ) external; /** * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients * are aware of the ERC721 protocol to prevent tokens from being forever locked. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must have been allowed to move this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function safeTransferFrom( address from, address to, uint256 tokenId ) external; /** * @dev Transfers `tokenId` token from `from` to `to`. * * WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * * Emits a {Transfer} event. */ function transferFrom( address from, address to, uint256 tokenId ) external; /** * @dev Gives permission to `to` to transfer `tokenId` token to another account. * The approval is cleared when the token is transferred. * * Only a single account can be approved at a time, so approving the zero address clears previous approvals. * * Requirements: * * - The caller must own the token or be an approved operator. * - `tokenId` must exist. * * Emits an {Approval} event. */ function approve(address to, uint256 tokenId) external; /** * @dev Approve or remove `operator` as an operator for the caller. * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller. * * Requirements: * * - The `operator` cannot be the caller. * * Emits an {ApprovalForAll} event. */ function setApprovalForAll(address operator, bool _approved) external; /** * @dev Returns the account approved for `tokenId` token. * * Requirements: * * - `tokenId` must exist. */ function getApproved(uint256 tokenId) external view returns (address operator); /** * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`. * * See {setApprovalForAll} */ function isApprovedForAll(address owner, address operator) external view returns (bool); }
// SPDX-License-Identifier: BUSL-1.1 // Gearbox Protocol. Generalized leverage for DeFi protocols // (c) Gearbox Holdings, 2022 pragma solidity ^0.8.10; import { IAddressProvider } from "../interfaces/IAddressProvider.sol"; import { Claimable } from "./access/Claimable.sol"; import { Errors } from "../libraries/Errors.sol"; // Repositories & services bytes32 constant CONTRACTS_REGISTER = "CONTRACTS_REGISTER"; bytes32 constant ACL = "ACL"; bytes32 constant PRICE_ORACLE = "PRICE_ORACLE"; bytes32 constant ACCOUNT_FACTORY = "ACCOUNT_FACTORY"; bytes32 constant DATA_COMPRESSOR = "DATA_COMPRESSOR"; bytes32 constant TREASURY_CONTRACT = "TREASURY_CONTRACT"; bytes32 constant GEAR_TOKEN = "GEAR_TOKEN"; bytes32 constant WETH_TOKEN = "WETH_TOKEN"; bytes32 constant WETH_GATEWAY = "WETH_GATEWAY"; bytes32 constant LEVERAGED_ACTIONS = "LEVERAGED_ACTIONS"; /// @title AddressRepository /// @notice Stores addresses of deployed contracts contract AddressProvider is Claimable, IAddressProvider { // Mapping from contract keys to respective addresses mapping(bytes32 => address) public addresses; // Contract version uint256 public constant version = 2; constructor() { // @dev Emits first event for contract discovery emit AddressSet("ADDRESS_PROVIDER", address(this)); } /// @return Address of ACL contract function getACL() external view returns (address) { return _getAddress(ACL); // F:[AP-3] } /// @dev Sets address of ACL contract /// @param _address Address of ACL contract function setACL(address _address) external onlyOwner // F:[AP-12] { _setAddress(ACL, _address); // F:[AP-3] } /// @return Address of ContractsRegister function getContractsRegister() external view returns (address) { return _getAddress(CONTRACTS_REGISTER); // F:[AP-4] } /// @dev Sets address of ContractsRegister /// @param _address Address of ContractsRegister function setContractsRegister(address _address) external onlyOwner // F:[AP-12] { _setAddress(CONTRACTS_REGISTER, _address); // F:[AP-4] } /// @return Address of PriceOracle function getPriceOracle() external view override returns (address) { return _getAddress(PRICE_ORACLE); // F:[AP-5] } /// @dev Sets address of PriceOracle /// @param _address Address of PriceOracle function setPriceOracle(address _address) external onlyOwner // F:[AP-12] { _setAddress(PRICE_ORACLE, _address); // F:[AP-5] } /// @return Address of AccountFactory function getAccountFactory() external view returns (address) { return _getAddress(ACCOUNT_FACTORY); // F:[AP-6] } /// @dev Sets address of AccountFactory /// @param _address Address of AccountFactory function setAccountFactory(address _address) external onlyOwner // F:[AP-12] { _setAddress(ACCOUNT_FACTORY, _address); // F:[AP-6] } /// @return Address of DataCompressor function getDataCompressor() external view override returns (address) { return _getAddress(DATA_COMPRESSOR); // F:[AP-7] } /// @dev Sets address of AccountFactory /// @param _address Address of AccountFactory function setDataCompressor(address _address) external onlyOwner // F:[AP-12] { _setAddress(DATA_COMPRESSOR, _address); // F:[AP-7] } /// @return Address of Treasury contract function getTreasuryContract() external view returns (address) { return _getAddress(TREASURY_CONTRACT); // F:[AP-8] } /// @dev Sets address of Treasury Contract /// @param _address Address of Treasury Contract function setTreasuryContract(address _address) external onlyOwner // F:[AP-12] { _setAddress(TREASURY_CONTRACT, _address); // F:[AP-8] } /// @return Address of GEAR token function getGearToken() external view override returns (address) { return _getAddress(GEAR_TOKEN); // F:[AP-9] } /// @dev Sets address of GEAR token /// @param _address Address of GEAR token function setGearToken(address _address) external onlyOwner // F:[AP-12] { _setAddress(GEAR_TOKEN, _address); // F:[AP-9] } /// @return Address of WETH token function getWethToken() external view override returns (address) { return _getAddress(WETH_TOKEN); // F:[AP-10] } /// @dev Sets address of WETH token /// @param _address Address of WETH token function setWethToken(address _address) external onlyOwner // F:[AP-12] { _setAddress(WETH_TOKEN, _address); // F:[AP-10] } /// @return Address of WETH token function getWETHGateway() external view override returns (address) { return _getAddress(WETH_GATEWAY); // F:[AP-11] } /// @dev Sets address of WETH token /// @param _address Address of WETH token function setWETHGateway(address _address) external onlyOwner // F:[AP-12] { _setAddress(WETH_GATEWAY, _address); // F:[AP-11] } /// @return Address of PathFinder function getLeveragedActions() external view returns (address) { return _getAddress(LEVERAGED_ACTIONS); // T:[AP-7] } /// @dev Sets address of PathFinder /// @param _address Address of PathFinder function setLeveragedActions(address _address) external onlyOwner // T:[AP-15] { _setAddress(LEVERAGED_ACTIONS, _address); // T:[AP-7] } /// @return Address of key, reverts if the key doesn't exist function _getAddress(bytes32 key) internal view returns (address) { address result = addresses[key]; require(result != address(0), Errors.AS_ADDRESS_NOT_FOUND); // F:[AP-1] return result; // F:[AP-3, 4, 5, 6, 7, 8, 9, 10, 11] } /// @dev Sets address to map by its key /// @param key Key in string format /// @param value Address function _setAddress(bytes32 key, address value) internal { addresses[key] = value; // F:[AP-3, 4, 5, 6, 7, 8, 9, 10, 11] emit AddressSet(key, value); // F:[AP-2] } }
// SPDX-License-Identifier: BUSL-1.1 // Gearbox Protocol. Generalized leverage for DeFi protocols // (c) Gearbox Holdings, 2022 pragma solidity ^0.8.10; import { Pausable } from "@openzeppelin/contracts/security/Pausable.sol"; import { AddressProvider } from "./AddressProvider.sol"; import { IACL } from "../interfaces/IACL.sol"; import { ZeroAddressException, CallerNotConfiguratorException, CallerNotPausableAdminException, CallerNotUnPausableAdminException } from "../interfaces/IErrors.sol"; /// @title ACL Trait /// @notice Utility class for ACL consumers abstract contract ACLTrait is Pausable { // ACL contract to check rights IACL public immutable _acl; /// @dev constructor /// @param addressProvider Address of address repository constructor(address addressProvider) { if (addressProvider == address(0)) revert ZeroAddressException(); // F:[AA-2] _acl = IACL(AddressProvider(addressProvider).getACL()); } /// @dev Reverts if msg.sender is not configurator modifier configuratorOnly() { if (!_acl.isConfigurator(msg.sender)) revert CallerNotConfiguratorException(); _; } ///@dev Pause contract function pause() external { if (!_acl.isPausableAdmin(msg.sender)) revert CallerNotPausableAdminException(); _pause(); } /// @dev Unpause contract function unpause() external { if (!_acl.isUnpausableAdmin(msg.sender)) revert CallerNotUnPausableAdminException(); _unpause(); } }
// SPDX-License-Identifier: BUSL-1.1 // Gearbox Protocol. Generalized leverage for DeFi protocols // (c) Gearbox Holdings, 2022 pragma solidity ^0.8.10; import { IContractsRegister } from "../interfaces/IContractsRegister.sol"; import { Errors } from "../libraries/Errors.sol"; import { ACLTrait } from "./ACLTrait.sol"; /// @title Pool & Credit Manager registry /// @notice Stores addresses of Pools and Credit Managers contract ContractsRegister is IContractsRegister, ACLTrait { /// @dev List of all registered pools address[] public override pools; /// @dev Mapping storing whether an address is a pool mapping(address => bool) public override isPool; /// @dev List of all registered Credit Managers address[] public override creditManagers; /// @dev Mapping storing whether an address is a Credit Manager mapping(address => bool) public override isCreditManager; /// @dev Contract version uint256 public constant version = 1; constructor(address addressProvider) ACLTrait(addressProvider) {} /// @dev Adds a pool to the list /// @param newPoolAddress Address of the new pool function addPool(address newPoolAddress) external configuratorOnly // T:[CR-1] { require( newPoolAddress != address(0), Errors.ZERO_ADDRESS_IS_NOT_ALLOWED ); require(!isPool[newPoolAddress], Errors.CR_POOL_ALREADY_ADDED); // T:[CR-2] pools.push(newPoolAddress); // T:[CR-3] isPool[newPoolAddress] = true; // T:[CR-3] emit NewPoolAdded(newPoolAddress); // T:[CR-4] } /// @dev Returns the array of registered pool addresses function getPools() external view override returns (address[] memory) { return pools; } /// @return Returns the number of registered pools function getPoolsCount() external view override returns (uint256) { return pools.length; // T:[CR-3] } /// @dev Adds credit accounts manager address to the registry /// @param newCreditManager Address of the new Credit Manager function addCreditManager(address newCreditManager) external configuratorOnly // T:[CR-1] { require( newCreditManager != address(0), Errors.ZERO_ADDRESS_IS_NOT_ALLOWED ); require( !isCreditManager[newCreditManager], Errors.CR_CREDIT_MANAGER_ALREADY_ADDED ); // T:[CR-5] creditManagers.push(newCreditManager); // T:[CR-6] isCreditManager[newCreditManager] = true; // T:[CR-6] emit NewCreditManagerAdded(newCreditManager); // T:[CR-7] } /// @dev Returns the array of registered credit manager addresses function getCreditManagers() external view override returns (address[] memory) { return creditManagers; } /// @return Returns the number of registered credit managers function getCreditManagersCount() external view override returns (uint256) { return creditManagers.length; // T:[CR-6] } }
// SPDX-License-Identifier: MIT // Gearbox Protocol. Generalized leverage for DeFi protocols // (c) Gearbox Holdings, 2022 pragma solidity ^0.8.10; /// @dev Common contract exceptions /// @dev Thrown on attempting to set an important address to zero address error ZeroAddressException(); /// @dev Thrown on attempting to call a non-implemented function error NotImplementedException(); /// @dev Thrown on attempting to set an EOA as an important contract in the system error AddressIsNotContractException(address); /// @dev Thrown on attempting to use a non-ERC20 contract or an EOA as a token error IncorrectTokenContractException(); /// @dev Thrown on attempting to set a token price feed to an address that is not a /// correct price feed error IncorrectPriceFeedException(); /// @dev Thrown on attempting to call an access restricted function as a non-Configurator error CallerNotConfiguratorException(); /// @dev Thrown on attempting to pause a contract as a non-Pausable admin error CallerNotPausableAdminException(); /// @dev Thrown on attempting to pause a contract as a non-Unpausable admin error CallerNotUnPausableAdminException(); error TokenIsNotAddedToCreditManagerException(address token);
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Metadata.sol) pragma solidity ^0.8.0; import "../IERC721.sol"; /** * @title ERC-721 Non-Fungible Token Standard, optional metadata extension * @dev See https://eips.ethereum.org/EIPS/eip-721 */ interface IERC721Metadata is IERC721 { /** * @dev Returns the token collection name. */ function name() external view returns (string memory); /** * @dev Returns the token collection symbol. */ function symbol() external view returns (string memory); /** * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token. */ function tokenURI(uint256 tokenId) external view returns (string memory); }
// SPDX-License-Identifier: MIT // Gearbox Protocol. Generalized leverage for DeFi protocols // (c) Gearbox Holdings, 2022 pragma solidity ^0.8.10; import { Balance } from "../libraries/Balances.sol"; import { MultiCall } from "../libraries/MultiCall.sol"; import { ICreditManagerV2, ICreditManagerV2Exceptions } from "./ICreditManagerV2.sol"; import { IVersion } from "./IVersion.sol"; interface ICreditFacadeExtended { /// @dev Stores expected balances (computed as current balance + passed delta) /// and compare with actual balances at the end of a multicall, reverts /// if at least one is less than expected /// @param expected Array of expected balance changes /// @notice This is an extenstion function that does not exist in the Credit Facade /// itself and can only be used within a multicall function revertIfReceivedLessThan(Balance[] memory expected) external; /// @dev Enables token in enabledTokenMask for the Credit Account of msg.sender /// @param token Address of token to enable function enableToken(address token) external; /// @dev Disables a token on the caller's Credit Account /// @param token Token to disable /// @notice This is an extenstion function that does not exist in the Credit Facade /// itself and can only be used within a multicall function disableToken(address token) external; /// @dev Adds collateral to borrower's credit account /// @param onBehalfOf Address of the borrower whose account is funded /// @param token Address of a collateral token /// @param amount Amount to add function addCollateral( address onBehalfOf, address token, uint256 amount ) external payable; /// @dev Increases debt for msg.sender's Credit Account /// - Borrows the requested amount from the pool /// - Updates the CA's borrowAmount / cumulativeIndexOpen /// to correctly compute interest going forward /// - Performs a full collateral check /// /// @param amount Amount to borrow function increaseDebt(uint256 amount) external; /// @dev Decrease debt /// - Decreases the debt by paying the requested amount + accrued interest + fees back to the pool /// - It's also include to this payment interest accrued at the moment and fees /// - Updates cunulativeIndex to cumulativeIndex now /// /// @param amount Amount to increase borrowed amount function decreaseDebt(uint256 amount) external; } interface ICreditFacadeEvents { /// @dev Emits when a new Credit Account is opened through the /// Credit Facade event OpenCreditAccount( address indexed onBehalfOf, address indexed creditAccount, uint256 borrowAmount, uint16 referralCode ); /// @dev Emits when the account owner closes their CA normally event CloseCreditAccount(address indexed borrower, address indexed to); /// @dev Emits when a Credit Account is liquidated due to low health factor event LiquidateCreditAccount( address indexed borrower, address indexed liquidator, address indexed to, uint256 remainingFunds ); /// @dev Emits when a Credit Account is liquidated due to expiry event LiquidateExpiredCreditAccount( address indexed borrower, address indexed liquidator, address indexed to, uint256 remainingFunds ); /// @dev Emits when the account owner increases CA's debt event IncreaseBorrowedAmount(address indexed borrower, uint256 amount); /// @dev Emits when the account owner reduces CA's debt event DecreaseBorrowedAmount(address indexed borrower, uint256 amount); /// @dev Emits when the account owner add new collateral to a CA event AddCollateral( address indexed onBehalfOf, address indexed token, uint256 value ); /// @dev Emits when a multicall is started event MultiCallStarted(address indexed borrower); /// @dev Emits when a multicall is finished event MultiCallFinished(); /// @dev Emits when Credit Account ownership is transferred event TransferAccount(address indexed oldOwner, address indexed newOwner); /// @dev Emits when the user changes approval for account transfers to itself from another address event TransferAccountAllowed( address indexed from, address indexed to, bool state ); /// @dev Emits when the account owner enables a token on their CA event TokenEnabled(address indexed borrower, address indexed token); /// @dev Emits when the account owner disables a token on their CA event TokenDisabled(address indexed borrower, address indexed token); } interface ICreditFacadeExceptions is ICreditManagerV2Exceptions { /// @dev Thrown if the CreditFacade is not expirable, and an aciton is attempted that /// requires expirability error NotAllowedWhenNotExpirableException(); /// @dev Thrown if whitelisted mode is enabled, and an action is attempted that is /// not allowed in whitelisted mode error NotAllowedInWhitelistedMode(); /// @dev Thrown if a user attempts to transfer a CA to an address that didn't allow it error AccountTransferNotAllowedException(); /// @dev Thrown if a liquidator tries to liquidate an account with a health factor above 1 error CantLiquidateWithSuchHealthFactorException(); /// @dev Thrown if a liquidator tries to liquidate an account by expiry while a Credit Facade is not expired error CantLiquidateNonExpiredException(); /// @dev Thrown if call data passed to a multicall is too short error IncorrectCallDataException(); /// @dev Thrown inside account closure multicall if the borrower attempts an action that is forbidden on closing /// an account error ForbiddenDuringClosureException(); /// @dev Thrown if debt increase and decrease are subsequently attempted in one multicall error IncreaseAndDecreaseForbiddenInOneCallException(); /// @dev Thrown if a selector that doesn't match any allowed function is passed to the Credit Facade /// during a multicall error UnknownMethodException(); /// @dev Thrown if a user tries to open an account or increase debt with increaseDebtForbidden mode on error IncreaseDebtForbiddenException(); /// @dev Thrown if the account owner tries to transfer an unhealthy account error CantTransferLiquidatableAccountException(); /// @dev Thrown if too much new debt was taken within a single block error BorrowedBlockLimitException(); /// @dev Thrown if the new debt principal for a CA falls outside of borrowing limits error BorrowAmountOutOfLimitsException(); /// @dev Thrown if one of the balances on a Credit Account is less than expected /// at the end of a multicall, if revertIfReceivedLessThan was called error BalanceLessThanMinimumDesiredException(address); /// @dev Thrown if a user attempts to open an account on a Credit Facade that has expired error OpenAccountNotAllowedAfterExpirationException(); /// @dev Thrown if expected balances are attempted to be set through revertIfReceivedLessThan twice error ExpectedBalancesAlreadySetException(); /// @dev Thrown if a Credit Account has enabled forbidden tokens and the owner attempts to perform an action /// that is not allowed with any forbidden tokens enabled error ActionProhibitedWithForbiddenTokensException(); } interface ICreditFacade is ICreditFacadeEvents, ICreditFacadeExceptions, IVersion { // // CREDIT ACCOUNT MANAGEMENT // /// @dev Opens credit account, borrows funds from the pool and pulls collateral /// without any additional action. /// @param amount The amount of collateral provided by the borrower /// @param onBehalfOf The address to open an account for. Transfers to it have to be allowed if /// msg.sender != obBehalfOf /// @param leverageFactor Percentage of the user's own funds to borrow. 100 is equal to 100% - borrows the same amount /// as the user's own collateral, equivalent to 2x leverage. /// @param referralCode Referral code that is used for potential rewards. 0 if no referral code provided. function openCreditAccount( uint256 amount, address onBehalfOf, uint16 leverageFactor, uint16 referralCode ) external payable; /// @dev Opens a Credit Account and runs a batch of operations in a multicall /// @param borrowedAmount Debt size /// @param onBehalfOf The address to open an account for. Transfers to it have to be allowed if /// msg.sender != obBehalfOf /// @param calls The array of MultiCall structs encoding the required operations. Generally must have /// at least a call to addCollateral, as otherwise the health check at the end will fail. /// @param referralCode Referral code which is used for potential rewards. 0 if no referral code provided function openCreditAccountMulticall( uint256 borrowedAmount, address onBehalfOf, MultiCall[] calldata calls, uint16 referralCode ) external payable; /// @dev Runs a batch of transactions within a multicall and closes the account /// - Wraps ETH to WETH and sends it msg.sender if value > 0 /// - Executes the multicall - the main purpose of a multicall when closing is to convert all assets to underlying /// in order to pay the debt. /// - Closes credit account: /// + Checks the underlying balance: if it is greater than the amount paid to the pool, transfers the underlying /// from the Credit Account and proceeds. If not, tries to transfer the shortfall from msg.sender. /// + Transfers all enabled assets with non-zero balances to the "to" address, unless they are marked /// to be skipped in skipTokenMask /// + If convertWETH is true, converts WETH into ETH before sending to the recipient /// - Emits a CloseCreditAccount event /// /// @param to Address to send funds to during account closing /// @param skipTokenMask Uint-encoded bit mask where 1's mark tokens that shouldn't be transferred /// @param convertWETH If true, converts WETH into ETH before sending to "to" /// @param calls The array of MultiCall structs encoding the operations to execute before closing the account. function closeCreditAccount( address to, uint256 skipTokenMask, bool convertWETH, MultiCall[] calldata calls ) external payable; /// @dev Runs a batch of transactions within a multicall and liquidates the account /// - Computes the total value and checks that hf < 1. An account can't be liquidated when hf >= 1. /// Total value has to be computed before the multicall, otherwise the liquidator would be able /// to manipulate it. /// - Wraps ETH to WETH and sends it to msg.sender (liquidator) if value > 0 /// - Executes the multicall - the main purpose of a multicall when liquidating is to convert all assets to underlying /// in order to pay the debt. /// - Liquidate credit account: /// + Computes the amount that needs to be paid to the pool. If totalValue * liquidationDiscount < borrow + interest + fees, /// only totalValue * liquidationDiscount has to be paid. Since liquidationDiscount < 1, the liquidator can take /// totalValue * (1 - liquidationDiscount) as premium. Also computes the remaining funds to be sent to borrower /// as totalValue * liquidationDiscount - amountToPool. /// + Checks the underlying balance: if it is greater than amountToPool + remainingFunds, transfers the underlying /// from the Credit Account and proceeds. If not, tries to transfer the shortfall from the liquidator. /// + Transfers all enabled assets with non-zero balances to the "to" address, unless they are marked /// to be skipped in skipTokenMask. If the liquidator is confident that all assets were converted /// during the multicall, they can set the mask to uint256.max - 1, to only transfer the underlying /// + If convertWETH is true, converts WETH into ETH before sending /// - Emits LiquidateCreditAccount event /// /// @param to Address to send funds to after liquidation /// @param skipTokenMask Uint-encoded bit mask where 1's mark tokens that shouldn't be transferred /// @param convertWETH If true, converts WETH into ETH before sending to "to" /// @param calls The array of MultiCall structs encoding the operations to execute before liquidating the account. function liquidateCreditAccount( address borrower, address to, uint256 skipTokenMask, bool convertWETH, MultiCall[] calldata calls ) external payable; /// @dev Runs a batch of transactions within a multicall and liquidates the account when /// this Credit Facade is expired /// The general flow of liquidation is nearly the same as normal liquidations, with two main differences: /// - An account can be liquidated on an expired Credit Facade even with hf > 1. However, /// no accounts can be liquidated through this function if the Credit Facade is not expired. /// - Liquidation premiums and fees for liquidating expired accounts are reduced. /// It is still possible to normally liquidate an underwater Credit Account, even when the Credit Facade /// is expired. /// @param to Address to send funds to after liquidation /// @param skipTokenMask Uint-encoded bit mask where 1's mark tokens that shouldn't be transferred /// @param convertWETH If true, converts WETH into ETH before sending to "to" /// @param calls The array of MultiCall structs encoding the operations to execute before liquidating the account. /// @notice See more at https://dev.gearbox.fi/docs/documentation/credit/liquidation#liquidating-accounts-by-expiration function liquidateExpiredCreditAccount( address borrower, address to, uint256 skipTokenMask, bool convertWETH, MultiCall[] calldata calls ) external payable; /// @dev Increases debt for msg.sender's Credit Account /// - Borrows the requested amount from the pool /// - Updates the CA's borrowAmount / cumulativeIndexOpen /// to correctly compute interest going forward /// - Performs a full collateral check /// /// @param amount Amount to borrow function increaseDebt(uint256 amount) external; /// @dev Decrease debt /// - Decreases the debt by paying the requested amount + accrued interest + fees back to the pool /// - It's also include to this payment interest accrued at the moment and fees /// - Updates cunulativeIndex to cumulativeIndex now /// /// @param amount Amount to increase borrowed amount function decreaseDebt(uint256 amount) external; /// @dev Adds collateral to borrower's credit account /// @param onBehalfOf Address of the borrower whose account is funded /// @param token Address of a collateral token /// @param amount Amount to add function addCollateral( address onBehalfOf, address token, uint256 amount ) external payable; /// @dev Executes a batch of transactions within a Multicall, to manage an existing account /// - Wraps ETH and sends it back to msg.sender, if value > 0 /// - Executes the Multicall /// - Performs a fullCollateralCheck to verify that hf > 1 after all actions /// @param calls The array of MultiCall structs encoding the operations to execute. function multicall(MultiCall[] calldata calls) external payable; /// @dev Returns true if the borrower has an open Credit Account /// @param borrower Borrower address function hasOpenedCreditAccount(address borrower) external view returns (bool); /// @dev Sets token allowance from msg.sender's Credit Account to a connected target contract /// @param targetContract Contract to set allowance to. Cannot be in the list of upgradeable contracts /// @param token Token address /// @param amount Allowance amount function approve( address targetContract, address token, uint256 amount ) external; /// @dev Approves account transfer from another user to msg.sender /// @param from Address for which account transfers are allowed/forbidden /// @param state True is transfer is allowed, false if forbidden function approveAccountTransfer(address from, bool state) external; /// @dev Enables token in enabledTokenMask for the Credit Account of msg.sender /// @param token Address of token to enable function enableToken(address token) external; /// @dev Transfers credit account to another user /// By default, this action is forbidden, and the user has to approve transfers from sender to itself /// by calling approveAccountTransfer. /// This is done to prevent malicious actors from transferring compromised accounts to other users. /// @param to Address to transfer the account to function transferAccountOwnership(address to) external; // // GETTERS // /// @dev Calculates total value for provided Credit Account in underlying /// /// @param creditAccount Credit Account address /// @return total Total value in underlying /// @return twv Total weighted (discounted by liquidation thresholds) value in underlying function calcTotalValue(address creditAccount) external view returns (uint256 total, uint256 twv); /** * @dev Calculates health factor for the credit account * * sum(asset[i] * liquidation threshold[i]) * Hf = -------------------------------------------- * borrowed amount + interest accrued + fees * * * More info: https://dev.gearbox.fi/developers/credit/economy#health-factor * * @param creditAccount Credit account address * @return hf = Health factor in bp (see PERCENTAGE FACTOR in PercentageMath.sol) */ function calcCreditAccountHealthFactor(address creditAccount) external view returns (uint256 hf); /// @dev Returns true if token is a collateral token and is not forbidden, /// otherwise returns false /// @param token Token to check function isTokenAllowed(address token) external view returns (bool); /// @dev Returns the CreditManager connected to this Credit Facade function creditManager() external view returns (ICreditManagerV2); /// @dev Returns true if 'from' is allowed to transfer Credit Accounts to 'to' /// @param from Sender address to check allowance for /// @param to Receiver address to check allowance for function transfersAllowed(address from, address to) external view returns (bool); /// @return maxBorrowedAmountPerBlock Maximal amount of new debt that can be taken per block /// @return isIncreaseDebtForbidden True if increasing debt is forbidden /// @return expirationDate Timestamp of the next expiration (for expirable Credit Facades only) function params() external view returns ( uint128 maxBorrowedAmountPerBlock, bool isIncreaseDebtForbidden, uint40 expirationDate ); /// @return minBorrowedAmount Minimal borrowed amount per credit account /// @return maxBorrowedAmount Maximal borrowed amount per credit account function limits() external view returns (uint128 minBorrowedAmount, uint128 maxBorrowedAmount); /// @dev Address of the DegenNFT that gatekeeps account openings in whitelisted mode function degenNFT() external view returns (address); /// @dev Address of the underlying asset function underlying() external view returns (address); }
// SPDX-License-Identifier: MIT // Gearbox Protocol. Generalized leverage for DeFi protocols // (c) Gearbox Holdings, 2022 pragma solidity ^0.8.10; import { IVersion } from "./IVersion.sol"; import { IERC721Metadata } from "@openzeppelin/contracts/token/ERC721/extensions/IERC721Metadata.sol"; interface IDegenNFTExceptions { /// @dev Thrown if an access-restricted function was called by non-CreditFacade error CreditFacadeOrConfiguratorOnlyException(); /// @dev Thrown if an access-restricted function was called by non-minter error MinterOnlyException(); /// @dev Thrown if trying to add a burner address that is not a correct Credit Facade error InvalidCreditFacadeException(); /// @dev Thrown if the account's balance is not sufficient for an action (usually a burn) error InsufficientBalanceException(); } interface IDegenNFTEvents { /// @dev Minted when new minter set event NewMinterSet(address indexed); /// @dev Minted each time when new credit facade added event NewCreditFacadeAdded(address indexed); /// @dev Minted each time when new credit facade added event NewCreditFacadeRemoved(address indexed); } interface IDegenNFT is IDegenNFTExceptions, IDegenNFTEvents, IVersion, IERC721Metadata { /// @dev address of the current minter function minter() external view returns (address); /// @dev Stores the total number of tokens on holder accounts function totalSupply() external view returns (uint256); /// @dev Stores the base URI for NFT metadata function baseURI() external view returns (string memory); /// @dev Mints a specified amount of tokens to the address /// @param to Address the tokens are minted to /// @param amount The number of tokens to mint function mint(address to, uint256 amount) external; /// @dev Burns a number of tokens from a specified address /// @param from The address a token will be burnt from /// @param amount The number of tokens to burn function burn(address from, uint256 amount) external; }
// SPDX-License-Identifier: MIT // Gearbox Protocol. Generalized leverage for DeFi protocols // (c) Gearbox Holdings, 2022 pragma solidity ^0.8.10; import { IPriceOracleV2 } from "./IPriceOracle.sol"; import { IVersion } from "./IVersion.sol"; enum ClosureAction { CLOSE_ACCOUNT, LIQUIDATE_ACCOUNT, LIQUIDATE_EXPIRED_ACCOUNT, LIQUIDATE_PAUSED } interface ICreditManagerV2Events { /// @dev Emits when a call to an external contract is made through the Credit Manager event ExecuteOrder(address indexed borrower, address indexed target); /// @dev Emits when a configurator is upgraded event NewConfigurator(address indexed newConfigurator); } interface ICreditManagerV2Exceptions { /// @dev Thrown if an access-restricted function is called by an address that is not /// the connected Credit Facade, or an allowed adapter error AdaptersOrCreditFacadeOnlyException(); /// @dev Thrown if an access-restricted function is called by an address that is not /// the connected Credit Facade error CreditFacadeOnlyException(); /// @dev Thrown if an access-restricted function is called by an address that is not /// the connected Credit Configurator error CreditConfiguratorOnlyException(); /// @dev Thrown on attempting to open a Credit Account for or transfer a Credit Account /// to the zero address or an address that already owns a Credit Account error ZeroAddressOrUserAlreadyHasAccountException(); /// @dev Thrown on attempting to execute an order to an address that is not an allowed /// target contract error TargetContractNotAllowedException(); /// @dev Thrown on failing a full collateral check after an operation error NotEnoughCollateralException(); /// @dev Thrown on attempting to receive a token that is not a collateral token /// or was forbidden error TokenNotAllowedException(); /// @dev Thrown if an attempt to approve a collateral token to a target contract failed error AllowanceFailedException(); /// @dev Thrown on attempting to perform an action for an address that owns no Credit Account error HasNoOpenedAccountException(); /// @dev Thrown on attempting to add a token that is already in a collateral list error TokenAlreadyAddedException(); /// @dev Thrown on configurator attempting to add more than 256 collateral tokens error TooManyTokensException(); /// @dev Thrown if more than the maximal number of tokens were enabled on a Credit Account, /// and there are not enough unused token to disable error TooManyEnabledTokensException(); /// @dev Thrown when a reentrancy into the contract is attempted error ReentrancyLockException(); } /// @notice All Credit Manager functions are access-restricted and can only be called /// by the Credit Facade or allowed adapters. Users are not allowed to /// interact with the Credit Manager directly interface ICreditManagerV2 is ICreditManagerV2Events, ICreditManagerV2Exceptions, IVersion { // // CREDIT ACCOUNT MANAGEMENT // /// @dev Opens credit account and borrows funds from the pool. /// - Takes Credit Account from the factory; /// - Requests the pool to lend underlying to the Credit Account /// /// @param borrowedAmount Amount to be borrowed by the Credit Account /// @param onBehalfOf The owner of the newly opened Credit Account function openCreditAccount(uint256 borrowedAmount, address onBehalfOf) external returns (address); /// @dev Closes a Credit Account - covers both normal closure and liquidation /// - Checks whether the contract is paused, and, if so, if the payer is an emergency liquidator. /// Only emergency liquidators are able to liquidate account while the CM is paused. /// Emergency liquidations do not pay a liquidator premium or liquidation fees. /// - Calculates payments to various recipients on closure: /// + Computes amountToPool, which is the amount to be sent back to the pool. /// This includes the principal, interest and fees, but can't be more than /// total position value /// + Computes remainingFunds during liquidations - these are leftover funds /// after paying the pool and the liquidator, and are sent to the borrower /// + Computes protocol profit, which includes interest and liquidation fees /// + Computes loss if the totalValue is less than borrow amount + interest /// - Checks the underlying token balance: /// + if it is larger than amountToPool, then the pool is paid fully from funds on the Credit Account /// + else tries to transfer the shortfall from the payer - either the borrower during closure, or liquidator during liquidation /// - Send assets to the "to" address, as long as they are not included into skipTokenMask /// - If convertWETH is true, the function converts WETH into ETH before sending /// - Returns the Credit Account back to factory /// /// @param borrower Borrower address /// @param closureActionType Whether the account is closed, liquidated or liquidated due to expiry /// @param totalValue Portfolio value for liqution, 0 for ordinary closure /// @param payer Address which would be charged if credit account has not enough funds to cover amountToPool /// @param to Address to which the leftover funds will be sent /// @param skipTokenMask Tokenmask contains 1 for tokens which needed to be skipped for sending /// @param convertWETH If true converts WETH to ETH function closeCreditAccount( address borrower, ClosureAction closureActionType, uint256 totalValue, address payer, address to, uint256 skipTokenMask, bool convertWETH ) external returns (uint256 remainingFunds); /// @dev Manages debt size for borrower: /// /// - Increase debt: /// + Increases debt by transferring funds from the pool to the credit account /// + Updates the cumulative index to keep interest the same. Since interest /// is always computed dynamically as borrowedAmount * (cumulativeIndexNew / cumulativeIndexOpen - 1), /// cumulativeIndexOpen needs to be updated, as the borrow amount has changed /// /// - Decrease debt: /// + Repays debt partially + all interest and fees accrued thus far /// + Updates cunulativeIndex to cumulativeIndex now /// /// @param creditAccount Address of the Credit Account to change debt for /// @param amount Amount to increase / decrease the principal by /// @param increase True to increase principal, false to decrease /// @return newBorrowedAmount The new debt principal function manageDebt( address creditAccount, uint256 amount, bool increase ) external returns (uint256 newBorrowedAmount); /// @dev Adds collateral to borrower's credit account /// @param payer Address of the account which will be charged to provide additional collateral /// @param creditAccount Address of the Credit Account /// @param token Collateral token to add /// @param amount Amount to add function addCollateral( address payer, address creditAccount, address token, uint256 amount ) external; /// @dev Transfers Credit Account ownership to another address /// @param from Address of previous owner /// @param to Address of new owner function transferAccountOwnership(address from, address to) external; /// @dev Requests the Credit Account to approve a collateral token to another contract. /// @param borrower Borrower's address /// @param targetContract Spender to change allowance for /// @param token Collateral token to approve /// @param amount New allowance amount function approveCreditAccount( address borrower, address targetContract, address token, uint256 amount ) external; /// @dev Requests a Credit Account to make a low-level call with provided data /// This is the intended pathway for state-changing interactions with 3rd-party protocols /// @param borrower Borrower's address /// @param targetContract Contract to be called /// @param data Data to pass with the call function executeOrder( address borrower, address targetContract, bytes memory data ) external returns (bytes memory); // // COLLATERAL VALIDITY AND ACCOUNT HEALTH CHECKS // /// @dev Enables a token on a Credit Account, including it /// into account health and total value calculations /// @param creditAccount Address of a Credit Account to enable the token for /// @param token Address of the token to be enabled function checkAndEnableToken(address creditAccount, address token) external; /// @dev Optimized health check for individual swap-like operations. /// @notice Fast health check assumes that only two tokens (input and output) /// participate in the operation and computes a % change in weighted value between /// inbound and outbound collateral. The cumulative negative change across several /// swaps in sequence cannot be larger than feeLiquidation (a fee that the /// protocol is ready to waive if needed). Since this records a % change /// between just two tokens, the corresponding % change in TWV will always be smaller, /// which makes this check safe. /// More details at https://dev.gearbox.fi/docs/documentation/risk/fast-collateral-check#fast-check-protection /// @param creditAccount Address of the Credit Account /// @param tokenIn Address of the token spent by the swap /// @param tokenOut Address of the token received from the swap /// @param balanceInBefore Balance of tokenIn before the operation /// @param balanceOutBefore Balance of tokenOut before the operation function fastCollateralCheck( address creditAccount, address tokenIn, address tokenOut, uint256 balanceInBefore, uint256 balanceOutBefore ) external; /// @dev Performs a full health check on an account, summing up /// value of all enabled collateral tokens /// @param creditAccount Address of the Credit Account to check function fullCollateralCheck(address creditAccount) external; /// @dev Checks that the number of enabled tokens on a Credit Account /// does not violate the maximal enabled token limit and tries /// to disable unused tokens if it does /// @param creditAccount Account to check enabled tokens for function checkAndOptimizeEnabledTokens(address creditAccount) external; /// @dev Disables a token on a credit account /// @notice Usually called by adapters to disable spent tokens during a multicall, /// but can also be called separately from the Credit Facade to remove /// unwanted tokens /// @return True if token mask was change otherwise False function disableToken(address creditAccount, address token) external returns (bool); // // GETTERS // /// @dev Returns the address of a borrower's Credit Account, or reverts if there is none. /// @param borrower Borrower's address function getCreditAccountOrRevert(address borrower) external view returns (address); /// @dev Computes amounts that must be sent to various addresses before closing an account /// @param totalValue Credit Accounts total value in underlying /// @param closureActionType Type of account closure /// * CLOSE_ACCOUNT: The account is healthy and is closed normally /// * LIQUIDATE_ACCOUNT: The account is unhealthy and is being liquidated to avoid bad debt /// * LIQUIDATE_EXPIRED_ACCOUNT: The account has expired and is being liquidated (lowered liquidation premium) /// * LIQUIDATE_PAUSED: The account is liquidated while the system is paused due to emergency (no liquidation premium) /// @param borrowedAmount Credit Account's debt principal /// @param borrowedAmountWithInterest Credit Account's debt principal + interest /// @return amountToPool Amount of underlying to be sent to the pool /// @return remainingFunds Amount of underlying to be sent to the borrower (only applicable to liquidations) /// @return profit Protocol's profit from fees (if any) /// @return loss Protocol's loss from bad debt (if any) function calcClosePayments( uint256 totalValue, ClosureAction closureActionType, uint256 borrowedAmount, uint256 borrowedAmountWithInterest ) external view returns ( uint256 amountToPool, uint256 remainingFunds, uint256 profit, uint256 loss ); /// @dev Calculates the debt accrued by a Credit Account /// @param creditAccount Address of the Credit Account /// @return borrowedAmount The debt principal /// @return borrowedAmountWithInterest The debt principal + accrued interest /// @return borrowedAmountWithInterestAndFees The debt principal + accrued interest and protocol fees function calcCreditAccountAccruedInterest(address creditAccount) external view returns ( uint256 borrowedAmount, uint256 borrowedAmountWithInterest, uint256 borrowedAmountWithInterestAndFees ); /// @dev Maps Credit Accounts to bit masks encoding their enabled token sets /// Only enabled tokens are counted as collateral for the Credit Account /// @notice An enabled token mask encodes an enabled token by setting /// the bit at the position equal to token's index to 1 function enabledTokensMap(address creditAccount) external view returns (uint256); /// @dev Maps the Credit Account to its current percentage drop across all swaps since /// the last full check, in RAY format function cumulativeDropAtFastCheckRAY(address creditAccount) external view returns (uint256); /// @dev Returns the collateral token at requested index and its liquidation threshold /// @param id The index of token to return function collateralTokens(uint256 id) external view returns (address token, uint16 liquidationThreshold); /// @dev Returns the collateral token with requested mask and its liquidationThreshold /// @param tokenMask Token mask corresponding to the token function collateralTokensByMask(uint256 tokenMask) external view returns (address token, uint16 liquidationThreshold); /// @dev Total number of known collateral tokens. function collateralTokensCount() external view returns (uint256); /// @dev Returns the mask for the provided token /// @param token Token to returns the mask for function tokenMasksMap(address token) external view returns (uint256); /// @dev Bit mask encoding a set of forbidden tokens function forbiddenTokenMask() external view returns (uint256); /// @dev Maps allowed adapters to their respective target contracts. function adapterToContract(address adapter) external view returns (address); /// @dev Maps 3rd party contracts to their respective adapters function contractToAdapter(address targetContract) external view returns (address); /// @dev Address of the underlying asset function underlying() external view returns (address); /// @dev Address of the connected pool function pool() external view returns (address); /// @dev Address of the connected pool /// @notice [DEPRECATED]: use pool() instead. function poolService() external view returns (address); /// @dev A map from borrower addresses to Credit Account addresses function creditAccounts(address borrower) external view returns (address); /// @dev Address of the connected Credit Configurator function creditConfigurator() external view returns (address); /// @dev Address of WETH function wethAddress() external view returns (address); /// @dev Returns the liquidation threshold for the provided token /// @param token Token to retrieve the LT for function liquidationThresholds(address token) external view returns (uint16); /// @dev The maximal number of enabled tokens on a single Credit Account function maxAllowedEnabledTokenLength() external view returns (uint8); /// @dev Maps addresses to their status as emergency liquidator. /// @notice Emergency liquidators are trusted addresses /// that are able to liquidate positions while the contracts are paused, /// e.g. when there is a risk of bad debt while an exploit is being patched. /// In the interest of fairness, emergency liquidators do not receive a premium /// And are compensated by the Gearbox DAO separately. function canLiquidateWhilePaused(address) external view returns (bool); /// @dev Returns the fee parameters of the Credit Manager /// @return feeInterest Percentage of interest taken by the protocol as profit /// @return feeLiquidation Percentage of account value taken by the protocol as profit /// during unhealthy account liquidations /// @return liquidationDiscount Multiplier that reduces the effective totalValue during unhealthy account liquidations, /// allowing the liquidator to take the unaccounted for remainder as premium. Equal to (1 - liquidationPremium) /// @return feeLiquidationExpired Percentage of account value taken by the protocol as profit /// during expired account liquidations /// @return liquidationDiscountExpired Multiplier that reduces the effective totalValue during expired account liquidations, /// allowing the liquidator to take the unaccounted for remainder as premium. Equal to (1 - liquidationPremiumExpired) function fees() external view returns ( uint16 feeInterest, uint16 feeLiquidation, uint16 liquidationDiscount, uint16 feeLiquidationExpired, uint16 liquidationDiscountExpired ); /// @dev Address of the connected Credit Facade function creditFacade() external view returns (address); /// @dev Address of the connected Price Oracle function priceOracle() external view returns (IPriceOracleV2); /// @dev Address of the universal adapter function universalAdapter() external view returns (address); /// @dev Contract's version function version() external view returns (uint256); /// @dev Paused() state function checkEmergencyPausable(address caller, bool state) external returns (bool); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/Context.sol) pragma solidity ^0.8.0; /** * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. */ abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { return msg.data; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (utils/Strings.sol) pragma solidity ^0.8.0; /** * @dev String operations. */ library Strings { bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef"; uint8 private constant _ADDRESS_LENGTH = 20; /** * @dev Converts a `uint256` to its ASCII `string` decimal representation. */ function toString(uint256 value) internal pure returns (string memory) { // Inspired by OraclizeAPI's implementation - MIT licence // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol if (value == 0) { return "0"; } uint256 temp = value; uint256 digits; while (temp != 0) { digits++; temp /= 10; } bytes memory buffer = new bytes(digits); while (value != 0) { digits -= 1; buffer[digits] = bytes1(uint8(48 + uint256(value % 10))); value /= 10; } return string(buffer); } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation. */ function toHexString(uint256 value) internal pure returns (string memory) { if (value == 0) { return "0x00"; } uint256 temp = value; uint256 length = 0; while (temp != 0) { length++; temp >>= 8; } return toHexString(value, length); } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length. */ function toHexString(uint256 value, uint256 length) internal pure returns (string memory) { bytes memory buffer = new bytes(2 * length + 2); buffer[0] = "0"; buffer[1] = "x"; for (uint256 i = 2 * length + 1; i > 1; --i) { buffer[i] = _HEX_SYMBOLS[value & 0xf]; value >>= 4; } require(value == 0, "Strings: hex length insufficient"); return string(buffer); } /** * @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation. */ function toHexString(address addr) internal pure returns (string memory) { return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.6.0) (token/ERC721/IERC721Receiver.sol) pragma solidity ^0.8.0; /** * @title ERC721 token receiver interface * @dev Interface for any contract that wants to support safeTransfers * from ERC721 asset contracts. */ interface IERC721Receiver { /** * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom} * by `operator` from `from`, this function is called. * * It must return its Solidity selector to confirm the token transfer. * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted. * * The selector can be obtained in Solidity with `IERC721Receiver.onERC721Received.selector`. */ function onERC721Received( address operator, address from, uint256 tokenId, bytes calldata data ) external returns (bytes4); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol) pragma solidity ^0.8.0; import "./IERC165.sol"; /** * @dev Implementation of the {IERC165} interface. * * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check * for the additional interface id that will be supported. For example: * * ```solidity * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { * return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId); * } * ``` * * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation. */ abstract contract ERC165 is IERC165 { /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IERC165).interfaceId; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC165 standard, as defined in the * https://eips.ethereum.org/EIPS/eip-165[EIP]. * * Implementers can declare support of contract interfaces, which can then be * queried by others ({ERC165Checker}). * * For an implementation, see {ERC165}. */ interface IERC165 { /** * @dev Returns true if this contract implements the interface defined by * `interfaceId`. See the corresponding * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section] * to learn more about how these ids are created. * * This function call must use less than 30 000 gas. */ function supportsInterface(bytes4 interfaceId) external view returns (bool); }
// SPDX-License-Identifier: MIT // Gearbox Protocol. Generalized leverage for DeFi protocols // (c) Gearbox Holdings, 2022 pragma solidity ^0.8.10; import { IVersion } from "./IVersion.sol"; interface IAddressProviderEvents { /// @dev Emits when an address is set for a contract role event AddressSet(bytes32 indexed service, address indexed newAddress); } /// @title Optimised for front-end Address Provider interface interface IAddressProvider is IAddressProviderEvents, IVersion { /// @return Address of ACL contract function getACL() external view returns (address); /// @return Address of ContractsRegister function getContractsRegister() external view returns (address); /// @return Address of AccountFactory function getAccountFactory() external view returns (address); /// @return Address of DataCompressor function getDataCompressor() external view returns (address); /// @return Address of GEAR token function getGearToken() external view returns (address); /// @return Address of WETH token function getWethToken() external view returns (address); /// @return Address of WETH Gateway function getWETHGateway() external view returns (address); /// @return Address of PriceOracle function getPriceOracle() external view returns (address); /// @return Address of DAO Treasury Multisig function getTreasuryContract() external view returns (address); /// @return Address of PathFinder function getLeveragedActions() external view returns (address); }
// SPDX-License-Identifier: GPL-2.0-or-later // Gearbox Protocol. Generalized leverage for DeFi protocols // (c) Gearbox Holdings, 2022 pragma solidity ^0.8.10; /// @title Errors library library Errors { // // COMMON // string public constant ZERO_ADDRESS_IS_NOT_ALLOWED = "Z0"; string public constant NOT_IMPLEMENTED = "NI"; string public constant INCORRECT_PATH_LENGTH = "PL"; string public constant INCORRECT_ARRAY_LENGTH = "CR"; string public constant REGISTERED_CREDIT_ACCOUNT_MANAGERS_ONLY = "CP"; string public constant REGISTERED_POOLS_ONLY = "RP"; string public constant INCORRECT_PARAMETER = "IP"; // // MATH // string public constant MATH_MULTIPLICATION_OVERFLOW = "M1"; string public constant MATH_ADDITION_OVERFLOW = "M2"; string public constant MATH_DIVISION_BY_ZERO = "M3"; // // POOL // string public constant POOL_CONNECTED_CREDIT_MANAGERS_ONLY = "PS0"; string public constant POOL_INCOMPATIBLE_CREDIT_ACCOUNT_MANAGER = "PS1"; string public constant POOL_MORE_THAN_EXPECTED_LIQUIDITY_LIMIT = "PS2"; string public constant POOL_INCORRECT_WITHDRAW_FEE = "PS3"; string public constant POOL_CANT_ADD_CREDIT_MANAGER_TWICE = "PS4"; // // ACCOUNT FACTORY // string public constant AF_CANT_CLOSE_CREDIT_ACCOUNT_IN_THE_SAME_BLOCK = "AF1"; string public constant AF_MINING_IS_FINISHED = "AF2"; string public constant AF_CREDIT_ACCOUNT_NOT_IN_STOCK = "AF3"; string public constant AF_EXTERNAL_ACCOUNTS_ARE_FORBIDDEN = "AF4"; // // ADDRESS PROVIDER // string public constant AS_ADDRESS_NOT_FOUND = "AP1"; // // CONTRACTS REGISTER // string public constant CR_POOL_ALREADY_ADDED = "CR1"; string public constant CR_CREDIT_MANAGER_ALREADY_ADDED = "CR2"; // // CREDIT ACCOUNT // string public constant CA_CONNECTED_CREDIT_MANAGER_ONLY = "CA1"; string public constant CA_FACTORY_ONLY = "CA2"; // // ACL // string public constant ACL_CALLER_NOT_PAUSABLE_ADMIN = "ACL1"; string public constant ACL_CALLER_NOT_CONFIGURATOR = "ACL2"; // // WETH GATEWAY // string public constant WG_DESTINATION_IS_NOT_WETH_COMPATIBLE = "WG1"; string public constant WG_RECEIVE_IS_NOT_ALLOWED = "WG2"; string public constant WG_NOT_ENOUGH_FUNDS = "WG3"; // // TOKEN DISTRIBUTOR // string public constant TD_WALLET_IS_ALREADY_CONNECTED_TO_VC = "TD1"; string public constant TD_INCORRECT_WEIGHTS = "TD2"; string public constant TD_NON_ZERO_BALANCE_AFTER_DISTRIBUTION = "TD3"; string public constant TD_CONTRIBUTOR_IS_NOT_REGISTERED = "TD4"; }
// SPDX-License-Identifier: BUSL-1.1 // Gearbox Protocol. Generalized leverage for DeFi protocols // (c) Gearbox Holdings, 2022 pragma solidity ^0.8.10; import { Ownable } from "@openzeppelin/contracts/access/Ownable.sol"; /// @title Claimable /// @dev Implements logic for a two-step ownership transfer on top of Ownable contract Claimable is Ownable { /// @dev The new owner that has not claimed ownership yet address public pendingOwner; /// @dev A modifier that restricts the function to the pending owner only modifier onlyPendingOwner() { if (msg.sender != pendingOwner) { revert("Claimable: Sender is not pending owner"); } _; } /// @dev Sets pending owner to the new owner, but does not /// transfer ownership yet /// @param newOwner The address to become the future owner function transferOwnership(address newOwner) public override onlyOwner { require( newOwner != address(0), "Claimable: new owner is the zero address" ); pendingOwner = newOwner; } /// @dev Used by the pending owner to claim ownership after transferOwnership function claimOwnership() external onlyPendingOwner { _transferOwnership(pendingOwner); pendingOwner = address(0); } }
// SPDX-License-Identifier: MIT // Gearbox Protocol. Generalized leverage for DeFi protocols // (c) Gearbox Holdings, 2022 pragma solidity ^0.8.10; /// @title IVersion /// @dev Declares a version function which returns the contract's version interface IVersion { /// @dev Returns contract version function version() external view returns (uint256); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (access/Ownable.sol) pragma solidity ^0.8.0; import "../utils/Context.sol"; /** * @dev Contract module which provides a basic access control mechanism, where * there is an account (an owner) that can be granted exclusive access to * specific functions. * * By default, the owner account will be the one that deploys the contract. This * can later be changed with {transferOwnership}. * * This module is used through inheritance. It will make available the modifier * `onlyOwner`, which can be applied to your functions to restrict their use to * the owner. */ abstract contract Ownable is Context { address private _owner; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); /** * @dev Initializes the contract setting the deployer as the initial owner. */ constructor() { _transferOwnership(_msgSender()); } /** * @dev Throws if called by any account other than the owner. */ modifier onlyOwner() { _checkOwner(); _; } /** * @dev Returns the address of the current owner. */ function owner() public view virtual returns (address) { return _owner; } /** * @dev Throws if the sender is not the owner. */ function _checkOwner() internal view virtual { require(owner() == _msgSender(), "Ownable: caller is not the owner"); } /** * @dev Leaves the contract without owner. It will not be possible to call * `onlyOwner` functions anymore. Can only be called by the current owner. * * NOTE: Renouncing ownership will leave the contract without an owner, * thereby removing any functionality that is only available to the owner. */ function renounceOwnership() public virtual onlyOwner { _transferOwnership(address(0)); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Can only be called by the current owner. */ function transferOwnership(address newOwner) public virtual onlyOwner { require(newOwner != address(0), "Ownable: new owner is the zero address"); _transferOwnership(newOwner); } /** * @dev Transfers ownership of the contract to a new account (`newOwner`). * Internal function without access restriction. */ function _transferOwnership(address newOwner) internal virtual { address oldOwner = _owner; _owner = newOwner; emit OwnershipTransferred(oldOwner, newOwner); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (security/Pausable.sol) pragma solidity ^0.8.0; import "../utils/Context.sol"; /** * @dev Contract module which allows children to implement an emergency stop * mechanism that can be triggered by an authorized account. * * This module is used through inheritance. It will make available the * modifiers `whenNotPaused` and `whenPaused`, which can be applied to * the functions of your contract. Note that they will not be pausable by * simply including this module, only once the modifiers are put in place. */ abstract contract Pausable is Context { /** * @dev Emitted when the pause is triggered by `account`. */ event Paused(address account); /** * @dev Emitted when the pause is lifted by `account`. */ event Unpaused(address account); bool private _paused; /** * @dev Initializes the contract in unpaused state. */ constructor() { _paused = false; } /** * @dev Modifier to make a function callable only when the contract is not paused. * * Requirements: * * - The contract must not be paused. */ modifier whenNotPaused() { _requireNotPaused(); _; } /** * @dev Modifier to make a function callable only when the contract is paused. * * Requirements: * * - The contract must be paused. */ modifier whenPaused() { _requirePaused(); _; } /** * @dev Returns true if the contract is paused, and false otherwise. */ function paused() public view virtual returns (bool) { return _paused; } /** * @dev Throws if the contract is paused. */ function _requireNotPaused() internal view virtual { require(!paused(), "Pausable: paused"); } /** * @dev Throws if the contract is not paused. */ function _requirePaused() internal view virtual { require(paused(), "Pausable: not paused"); } /** * @dev Triggers stopped state. * * Requirements: * * - The contract must not be paused. */ function _pause() internal virtual whenNotPaused { _paused = true; emit Paused(_msgSender()); } /** * @dev Returns to normal state. * * Requirements: * * - The contract must be paused. */ function _unpause() internal virtual whenPaused { _paused = false; emit Unpaused(_msgSender()); } }
// SPDX-License-Identifier: MIT // Gearbox Protocol. Generalized leverage for DeFi protocols // (c) Gearbox Holdings, 2022 pragma solidity ^0.8.10; import { IVersion } from "./IVersion.sol"; interface IACLExceptions { /// @dev Thrown when attempting to delete an address from a set that is not a pausable admin error AddressNotPausableAdminException(address addr); /// @dev Thrown when attempting to delete an address from a set that is not a unpausable admin error AddressNotUnpausableAdminException(address addr); } interface IACLEvents { /// @dev Emits when a new admin is added that can pause contracts event PausableAdminAdded(address indexed newAdmin); /// @dev Emits when a Pausable admin is removed event PausableAdminRemoved(address indexed admin); /// @dev Emits when a new admin is added that can unpause contracts event UnpausableAdminAdded(address indexed newAdmin); /// @dev Emits when an Unpausable admin is removed event UnpausableAdminRemoved(address indexed admin); } /// @title ACL interface interface IACL is IACLEvents, IACLExceptions, IVersion { /// @dev Returns true if the address is a pausable admin and false if not /// @param addr Address to check function isPausableAdmin(address addr) external view returns (bool); /// @dev Returns true if the address is unpausable admin and false if not /// @param addr Address to check function isUnpausableAdmin(address addr) external view returns (bool); /// @dev Returns true if an address has configurator rights /// @param account Address to check function isConfigurator(address account) external view returns (bool); /// @dev Returns address of configurator function owner() external view returns (address); }
// SPDX-License-Identifier: MIT // Gearbox Protocol. Generalized leverage for DeFi protocols // (c) Gearbox Holdings, 2022 pragma solidity ^0.8.10; import { IVersion } from "./IVersion.sol"; interface IContractsRegisterEvents { /// @dev Emits when a new pool is registered in the system event NewPoolAdded(address indexed pool); /// @dev Emits when a new Credit Manager is registered in the system event NewCreditManagerAdded(address indexed creditManager); } interface IContractsRegister is IContractsRegisterEvents, IVersion { // // POOLS // /// @dev Returns the array of registered pools function getPools() external view returns (address[] memory); /// @dev Returns a pool address from the list under the passed index /// @param i Index of the pool to retrieve function pools(uint256 i) external returns (address); /// @return Returns the number of registered pools function getPoolsCount() external view returns (uint256); /// @dev Returns true if the passed address is a pool function isPool(address) external view returns (bool); // // CREDIT MANAGERS // /// @dev Returns the array of registered Credit Managers function getCreditManagers() external view returns (address[] memory); /// @dev Returns a Credit Manager's address from the list under the passed index /// @param i Index of the Credit Manager to retrieve function creditManagers(uint256 i) external returns (address); /// @return Returns the number of registered Credit Managers function getCreditManagersCount() external view returns (uint256); /// @dev Returns true if the passed address is a Credit Manager function isCreditManager(address) external view returns (bool); }
// SPDX-License-Identifier: GPL-2.0-or-later // Gearbox Protocol. Generalized leverage for DeFi protocols // (c) Gearbox Holdings, 2022 pragma solidity ^0.8.10; struct Balance { address token; uint256 balance; } library BalanceOps { error UnknownToken(address); function copyBalance(Balance memory b) internal pure returns (Balance memory) { return Balance({ token: b.token, balance: b.balance }); } function addBalance( Balance[] memory b, address token, uint256 amount ) internal pure { b[getIndex(b, token)].balance += amount; } function subBalance( Balance[] memory b, address token, uint256 amount ) internal pure { b[getIndex(b, token)].balance -= amount; } function getBalance(Balance[] memory b, address token) internal pure returns (uint256 amount) { return b[getIndex(b, token)].balance; } function setBalance( Balance[] memory b, address token, uint256 amount ) internal pure { b[getIndex(b, token)].balance = amount; } function getIndex(Balance[] memory b, address token) internal pure returns (uint256 index) { for (uint256 i; i < b.length; ) { if (b[i].token == token) { return i; } unchecked { ++i; } } revert UnknownToken(token); } function copy(Balance[] memory b, uint256 len) internal pure returns (Balance[] memory res) { res = new Balance[](len); for (uint256 i; i < len; ) { res[i] = copyBalance(b[i]); unchecked { ++i; } } } function clone(Balance[] memory b) internal pure returns (Balance[] memory) { return copy(b, b.length); } function getModifiedAfterSwap( Balance[] memory b, address tokenFrom, uint256 amountFrom, address tokenTo, uint256 amountTo ) internal pure returns (Balance[] memory res) { res = copy(b, b.length); setBalance(res, tokenFrom, getBalance(b, tokenFrom) - amountFrom); setBalance(res, tokenTo, getBalance(b, tokenTo) + amountTo); } }
// SPDX-License-Identifier: BUSL-1.1 pragma solidity ^0.8.10; struct MultiCall { address target; bytes callData; } library MultiCallOps { function copyMulticall(MultiCall memory call) internal pure returns (MultiCall memory) { return MultiCall({ target: call.target, callData: call.callData }); } function trim(MultiCall[] memory calls) internal pure returns (MultiCall[] memory trimmed) { uint256 len = calls.length; if (len == 0) return calls; uint256 foundLen; while (calls[foundLen].target != address(0)) { unchecked { ++foundLen; if (foundLen == len) return calls; } } if (foundLen > 0) return copy(calls, foundLen); } function copy(MultiCall[] memory calls, uint256 len) internal pure returns (MultiCall[] memory res) { res = new MultiCall[](len); for (uint256 i; i < len; ) { res[i] = copyMulticall(calls[i]); unchecked { ++i; } } } function clone(MultiCall[] memory calls) internal pure returns (MultiCall[] memory res) { return copy(calls, calls.length); } function append(MultiCall[] memory calls, MultiCall memory newCall) internal pure returns (MultiCall[] memory res) { uint256 len = calls.length; res = new MultiCall[](len + 1); for (uint256 i; i < len; ) { res[i] = copyMulticall(calls[i]); unchecked { ++i; } } res[len] = copyMulticall(newCall); } function prepend(MultiCall[] memory calls, MultiCall memory newCall) internal pure returns (MultiCall[] memory res) { uint256 len = calls.length; res = new MultiCall[](len + 1); res[0] = copyMulticall(newCall); for (uint256 i = 1; i < len + 1; ) { res[i] = copyMulticall(calls[i]); unchecked { ++i; } } } function concat(MultiCall[] memory calls1, MultiCall[] memory calls2) internal pure returns (MultiCall[] memory res) { uint256 len1 = calls1.length; uint256 lenTotal = len1 + calls2.length; if (lenTotal == calls1.length) return clone(calls1); if (lenTotal == calls2.length) return clone(calls2); res = new MultiCall[](lenTotal); for (uint256 i; i < lenTotal; ) { res[i] = (i < len1) ? copyMulticall(calls1[i]) : copyMulticall(calls2[i - len1]); unchecked { ++i; } } } }
// SPDX-License-Identifier: MIT // Gearbox Protocol. Generalized leverage for DeFi protocols // (c) Gearbox Holdings, 2022 pragma solidity ^0.8.10; import { IVersion } from "./IVersion.sol"; interface IPriceOracleV2Events { /// @dev Emits when a new price feed is added event NewPriceFeed(address indexed token, address indexed priceFeed); } interface IPriceOracleV2Exceptions { /// @dev Thrown if a price feed returns 0 error ZeroPriceException(); /// @dev Thrown if the last recorded result was not updated in the last round error ChainPriceStaleException(); /// @dev Thrown on attempting to get a result for a token that does not have a price feed error PriceOracleNotExistsException(); } /// @title Price oracle interface interface IPriceOracleV2 is IPriceOracleV2Events, IPriceOracleV2Exceptions, IVersion { /// @dev Converts a quantity of an asset to USD (decimals = 8). /// @param amount Amount to convert /// @param token Address of the token to be converted function convertToUSD(uint256 amount, address token) external view returns (uint256); /// @dev Converts a quantity of USD (decimals = 8) to an equivalent amount of an asset /// @param amount Amount to convert /// @param token Address of the token converted to function convertFromUSD(uint256 amount, address token) external view returns (uint256); /// @dev Converts one asset into another /// /// @param amount Amount to convert /// @param tokenFrom Address of the token to convert from /// @param tokenTo Address of the token to convert to function convert( uint256 amount, address tokenFrom, address tokenTo ) external view returns (uint256); /// @dev Returns collateral values for two tokens, required for a fast check /// @param amountFrom Amount of the outbound token /// @param tokenFrom Address of the outbound token /// @param amountTo Amount of the inbound token /// @param tokenTo Address of the inbound token /// @return collateralFrom Value of the outbound token amount in USD /// @return collateralTo Value of the inbound token amount in USD function fastCheck( uint256 amountFrom, address tokenFrom, uint256 amountTo, address tokenTo ) external view returns (uint256 collateralFrom, uint256 collateralTo); /// @dev Returns token's price in USD (8 decimals) /// @param token The token to compute the price for function getPrice(address token) external view returns (uint256); /// @dev Returns the price feed address for the passed token /// @param token Token to get the price feed for function priceFeeds(address token) external view returns (address priceFeed); /// @dev Returns the price feed for the passed token, /// with additional parameters /// @param token Token to get the price feed for function priceFeedsWithFlags(address token) external view returns ( address priceFeed, bool skipCheck, uint256 decimals ); } interface IPriceOracleV2Ext is IPriceOracleV2 { /// @dev Sets a price feed if it doesn't exist, or updates an existing one /// @param token Address of the token to set the price feed for /// @param priceFeed Address of a USD price feed adhering to Chainlink's interface function addPriceFeed(address token, address priceFeed) external; }
{ "optimizer": { "enabled": true, "runs": 1000000 }, "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "devdoc", "userdoc", "metadata", "abi" ] } }, "libraries": {} }
Contract Security Audit
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Contract Creation Code
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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)
000000000000000000000000cf64698aff7e5f27a11dff868af228653ba53be0000000000000000000000000000000000000000000000000000000000000006000000000000000000000000000000000000000000000000000000000000000a00000000000000000000000000000000000000000000000000000000000000008446567656e4e46540000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004444e465400000000000000000000000000000000000000000000000000000000
-----Decoded View---------------
Arg [0] : _addressProvider (address): 0xcF64698AFF7E5f27A11dff868AF228653ba53be0
Arg [1] : _name (string): DegenNFT
Arg [2] : _symbol (string): DNFT
-----Encoded View---------------
7 Constructor Arguments found :
Arg [0] : 000000000000000000000000cf64698aff7e5f27a11dff868af228653ba53be0
Arg [1] : 0000000000000000000000000000000000000000000000000000000000000060
Arg [2] : 00000000000000000000000000000000000000000000000000000000000000a0
Arg [3] : 0000000000000000000000000000000000000000000000000000000000000008
Arg [4] : 446567656e4e4654000000000000000000000000000000000000000000000000
Arg [5] : 0000000000000000000000000000000000000000000000000000000000000004
Arg [6] : 444e465400000000000000000000000000000000000000000000000000000000
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