文件 1 的 1：Registry.sol
pragma solidity 0.8.7;
interface IRegistry {
event Lend(
bool is721,
address indexed lenderAddress,
address indexed nftAddress,
uint256 indexed tokenID,
uint256 lendingID,
uint8 maxRentDuration,
bytes4 dailyRentPrice,
uint16 lendAmount,
IResolver.PaymentToken paymentToken
);
event Rent(
address indexed renterAddress,
uint256 indexed lendingID,
uint256 indexed rentingID,
uint16 rentAmount,
uint8 rentDuration,
uint32 rentedAt
);
event StopLend(uint256 indexed lendingID, uint32 stoppedAt);
event StopRent(uint256 indexed rentingID, uint32 stoppedAt);
event RentClaimed(uint256 indexed rentingID, uint32 collectedAt);
enum NFTStandard {
E721,
E1155
}
struct CallData {
uint256 left;
uint256 right;
IRegistry.NFTStandard[] nftStandard;
address[] nftAddress;
uint256[] tokenID;
uint256[] lendAmount;
uint8[] maxRentDuration;
bytes4[] dailyRentPrice;
uint256[] lendingID;
uint256[] rentingID;
uint8[] rentDuration;
uint256[] rentAmount;
IResolver.PaymentToken[] paymentToken;
}
struct Lending {
NFTStandard nftStandard;
address payable lenderAddress;
uint8 maxRentDuration;
bytes4 dailyRentPrice;
uint16 lendAmount;
uint16 availableAmount;
IResolver.PaymentToken paymentToken;
}
struct Renting {
address payable renterAddress;
uint8 rentDuration;
uint32 rentedAt;
uint16 rentAmount;
}
function lend(
IRegistry.NFTStandard[] memory nftStandard,
address[] memory nftAddress,
uint256[] memory tokenID,
uint256[] memory lendAmount,
uint8[] memory maxRentDuration,
bytes4[] memory dailyRentPrice,
IResolver.PaymentToken[] memory paymentToken
) external;
function stopLend(
IRegistry.NFTStandard[] memory nftStandard,
address[] memory nftAddress,
uint256[] memory tokenID,
uint256[] memory lendingID
) external;
function rent(
IRegistry.NFTStandard[] memory nftStandard,
address[] memory nftAddress,
uint256[] memory tokenID,
uint256[] memory lendingID,
uint8[] memory rentDuration,
uint256[] memory rentAmount
) external payable;
function stopRent(
IRegistry.NFTStandard[] memory nftStandard,
address[] memory nftAddress,
uint256[] memory tokenID,
uint256[] memory lendingID,
uint256[] memory rentingID
) external;
function claimRent(
IRegistry.NFTStandard[] memory nftStandard,
address[] memory nftAddress,
uint256[] memory tokenID,
uint256[] memory lendingID,
uint256[] memory rentingID
) external;
}
interface IResolver {
enum PaymentToken {
SENTINEL,
DAI,
USDC,
TUSD
}
function getPaymentToken(uint8 _pt) external view returns (address);
function setPaymentToken(uint8 _pt, address _v) external;
}
library Address {
function isContract(address account) internal view returns (bool) {
uint256 size;
assembly {
size := extcodesize(account)
}
return size > 0;
}
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");
}
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCall(target, data, "Address: low-level call failed");
}
function functionCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, errorMessage);
}
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");
}
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);
}
function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
return functionStaticCall(target, data, "Address: low-level static call failed");
}
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);
}
function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
return functionDelegateCall(target, data, "Address: low-level delegate call failed");
}
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);
}
function verifyCallResult(
bool success,
bytes memory returndata,
string memory errorMessage
) internal pure returns (bytes memory) {
if (success) {
return returndata;
} else {
if (returndata.length > 0) {
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
}
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
}
interface IERC165 {
function supportsInterface(bytes4 interfaceId) external view returns (bool);
}
interface IERC20 {
function totalSupply() external view returns (uint256);
function balanceOf(address account) external view returns (uint256);
function transfer(address recipient, uint256 amount) external returns (bool);
function allowance(address owner, address spender) external view returns (uint256);
function approve(address spender, uint256 amount) external returns (bool);
function transferFrom(
address sender,
address recipient,
uint256 amount
) external returns (bool);
event Transfer(address indexed from, address indexed to, uint256 value);
event Approval(address indexed owner, address indexed spender, uint256 value);
}
interface IERC721Receiver {
function onERC721Received(
address operator,
address from,
uint256 tokenId,
bytes calldata data
) external returns (bytes4);
}
abstract contract ERC165 is IERC165 {
function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
return interfaceId == type(IERC165).interfaceId;
}
}
contract ERC721Holder is IERC721Receiver {
function onERC721Received(
address,
address,
uint256,
bytes memory
) public virtual override returns (bytes4) {
return this.onERC721Received.selector;
}
}
interface IERC1155 is IERC165 {
event TransferSingle(address indexed operator, address indexed from, address indexed to, uint256 id, uint256 value);
event TransferBatch(
address indexed operator,
address indexed from,
address indexed to,
uint256[] ids,
uint256[] values
);
event ApprovalForAll(address indexed account, address indexed operator, bool approved);
event URI(string value, uint256 indexed id);
function balanceOf(address account, uint256 id) external view returns (uint256);
function balanceOfBatch(address[] calldata accounts, uint256[] calldata ids)
external
view
returns (uint256[] memory);
function setApprovalForAll(address operator, bool approved) external;
function isApprovedForAll(address account, address operator) external view returns (bool);
function safeTransferFrom(
address from,
address to,
uint256 id,
uint256 amount,
bytes calldata data
) external;
function safeBatchTransferFrom(
address from,
address to,
uint256[] calldata ids,
uint256[] calldata amounts,
bytes calldata data
) external;
}
interface IERC1155Receiver is IERC165 {
function onERC1155Received(
address operator,
address from,
uint256 id,
uint256 value,
bytes calldata data
) external returns (bytes4);
function onERC1155BatchReceived(
address operator,
address from,
uint256[] calldata ids,
uint256[] calldata values,
bytes calldata data
) external returns (bytes4);
}
interface IERC20Metadata is IERC20 {
function name() external view returns (string memory);
function symbol() external view returns (string memory);
function decimals() external view returns (uint8);
}
interface IERC721 is IERC165 {
event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);
event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);
event ApprovalForAll(address indexed owner, address indexed operator, bool approved);
function balanceOf(address owner) external view returns (uint256 balance);
function ownerOf(uint256 tokenId) external view returns (address owner);
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) external;
function transferFrom(
address from,
address to,
uint256 tokenId
) external;
function approve(address to, uint256 tokenId) external;
function getApproved(uint256 tokenId) external view returns (address operator);
function setApprovalForAll(address operator, bool _approved) external;
function isApprovedForAll(address owner, address operator) external view returns (bool);
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes calldata data
) external;
}
library SafeERC20 {
using Address for address;
function safeTransfer(
IERC20 token,
address to,
uint256 value
) internal {
_callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
}
function safeTransferFrom(
IERC20 token,
address from,
address to,
uint256 value
) internal {
_callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));
}
function safeApprove(
IERC20 token,
address spender,
uint256 value
) internal {
require(
(value == 0) || (token.allowance(address(this), spender) == 0),
"SafeERC20: approve from non-zero to non-zero allowance"
);
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
}
function safeIncreaseAllowance(
IERC20 token,
address spender,
uint256 value
) internal {
uint256 newAllowance = token.allowance(address(this), spender) + value;
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
}
function safeDecreaseAllowance(
IERC20 token,
address spender,
uint256 value
) internal {
unchecked {
uint256 oldAllowance = token.allowance(address(this), spender);
require(oldAllowance >= value, "SafeERC20: decreased allowance below zero");
uint256 newAllowance = oldAllowance - value;
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
}
}
function _callOptionalReturn(IERC20 token, bytes memory data) private {
bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed");
if (returndata.length > 0) {
require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
}
}
}
abstract contract ERC1155Receiver is ERC165, IERC1155Receiver {
function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) {
return interfaceId == type(IERC1155Receiver).interfaceId || super.supportsInterface(interfaceId);
}
}
contract ERC20 is Context, IERC20, IERC20Metadata {
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
uint256 private _totalSupply;
string private _name;
string private _symbol;
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
function name() public view virtual override returns (string memory) {
return _name;
}
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
function decimals() public view virtual override returns (uint8) {
return 18;
}
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
function balanceOf(address account) public view virtual override returns (uint256) {
return _balances[account];
}
function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
_transfer(_msgSender(), recipient, amount);
return true;
}
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
function approve(address spender, uint256 amount) public virtual override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
function transferFrom(
address sender,
address recipient,
uint256 amount
) public virtual override returns (bool) {
_transfer(sender, recipient, amount);
uint256 currentAllowance = _allowances[sender][_msgSender()];
require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance");
unchecked {
_approve(sender, _msgSender(), currentAllowance - amount);
}
return true;
}
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender] + addedValue);
return true;
}
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
uint256 currentAllowance = _allowances[_msgSender()][spender];
require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
unchecked {
_approve(_msgSender(), spender, currentAllowance - subtractedValue);
}
return true;
}
function _transfer(
address sender,
address recipient,
uint256 amount
) internal virtual {
require(sender != address(0), "ERC20: transfer from the zero address");
require(recipient != address(0), "ERC20: transfer to the zero address");
_beforeTokenTransfer(sender, recipient, amount);
uint256 senderBalance = _balances[sender];
require(senderBalance >= amount, "ERC20: transfer amount exceeds balance");
unchecked {
_balances[sender] = senderBalance - amount;
}
_balances[recipient] += amount;
emit Transfer(sender, recipient, amount);
_afterTokenTransfer(sender, recipient, amount);
}
function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_beforeTokenTransfer(address(0), account, amount);
_totalSupply += amount;
_balances[account] += amount;
emit Transfer(address(0), account, amount);
_afterTokenTransfer(address(0), account, amount);
}
function _burn(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: burn from the zero address");
_beforeTokenTransfer(account, address(0), amount);
uint256 accountBalance = _balances[account];
require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
unchecked {
_balances[account] = accountBalance - amount;
}
_totalSupply -= amount;
emit Transfer(account, address(0), amount);
_afterTokenTransfer(account, address(0), amount);
}
function _approve(
address owner,
address spender,
uint256 amount
) internal virtual {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
function _beforeTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
function _afterTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
}
contract ERC1155Holder is ERC1155Receiver {
function onERC1155Received(
address,
address,
uint256,
uint256,
bytes memory
) public virtual override returns (bytes4) {
return this.onERC1155Received.selector;
}
function onERC1155BatchReceived(
address,
address,
uint256[] memory,
uint256[] memory,
bytes memory
) public virtual override returns (bytes4) {
return this.onERC1155BatchReceived.selector;
}
}
contract Registry is IRegistry, ERC721Holder, ERC1155Receiver, ERC1155Holder {
using SafeERC20 for ERC20;
IResolver private resolver;
address private admin;
address payable private beneficiary;
uint256 private lendingID = 1;
uint256 private rentingID = 1;
bool public paused = false;
uint256 public rentFee = 0;
uint256 private constant SECONDS_IN_DAY = 86400;
mapping(bytes32 => Lending) private lendings;
mapping(bytes32 => Renting) private rentings;
modifier onlyAdmin() {
require(msg.sender == admin, "ReNFT::not admin");
_;
}
modifier notPaused() {
require(!paused, "ReNFT::paused");
_;
}
constructor(
address newResolver,
address payable newBeneficiary,
address newAdmin
) {
ensureIsNotZeroAddr(newResolver);
ensureIsNotZeroAddr(newBeneficiary);
ensureIsNotZeroAddr(newAdmin);
resolver = IResolver(newResolver);
beneficiary = newBeneficiary;
admin = newAdmin;
}
function lend(
IRegistry.NFTStandard[] memory nftStandard,
address[] memory nftAddress,
uint256[] memory tokenID,
uint256[] memory lendAmount,
uint8[] memory maxRentDuration,
bytes4[] memory dailyRentPrice,
IResolver.PaymentToken[] memory paymentToken
) external override notPaused {
bundleCall(
handleLend,
createLendCallData(
nftStandard,
nftAddress,
tokenID,
lendAmount,
maxRentDuration,
dailyRentPrice,
paymentToken
)
);
}
function stopLend(
IRegistry.NFTStandard[] memory nftStandard,
address[] memory nftAddress,
uint256[] memory tokenID,
uint256[] memory _lendingID
) external override notPaused {
bundleCall(
handleStopLend,
createActionCallData(
nftStandard,
nftAddress,
tokenID,
_lendingID,
new uint256[](0)
)
);
}
function rent(
IRegistry.NFTStandard[] memory nftStandard,
address[] memory nftAddress,
uint256[] memory tokenID,
uint256[] memory _lendingID,
uint8[] memory rentDuration,
uint256[] memory rentAmount
) external payable override notPaused {
bundleCall(
handleRent,
createRentCallData(
nftStandard,
nftAddress,
tokenID,
_lendingID,
rentDuration,
rentAmount
)
);
}
function stopRent(
IRegistry.NFTStandard[] memory nftStandard,
address[] memory nftAddress,
uint256[] memory tokenID,
uint256[] memory _lendingID,
uint256[] memory _rentingID
) external override notPaused {
bundleCall(
handleStopRent,
createActionCallData(
nftStandard,
nftAddress,
tokenID,
_lendingID,
_rentingID
)
);
}
function claimRent(
IRegistry.NFTStandard[] memory nftStandard,
address[] memory nftAddress,
uint256[] memory tokenID,
uint256[] memory _lendingID,
uint256[] memory _rentingID
) external override notPaused {
bundleCall(
handleClaimRent,
createActionCallData(
nftStandard,
nftAddress,
tokenID,
_lendingID,
_rentingID
)
);
}
function handleLend(IRegistry.CallData memory cd) private {
for (uint256 i = cd.left; i < cd.right; i++) {
ensureIsLendable(cd, i);
bytes32 identifier = keccak256(
abi.encodePacked(
cd.nftAddress[cd.left],
cd.tokenID[i],
lendingID
)
);
IRegistry.Lending storage lending = lendings[identifier];
ensureIsNull(lending);
ensureTokenNotSentinel(uint8(cd.paymentToken[i]));
bool is721 = cd.nftStandard[i] == IRegistry.NFTStandard.E721;
lendings[identifier] = IRegistry.Lending({
nftStandard: cd.nftStandard[i],
lenderAddress: payable(msg.sender),
maxRentDuration: cd.maxRentDuration[i],
dailyRentPrice: cd.dailyRentPrice[i],
lendAmount: is721 ? 1 : uint16(cd.lendAmount[i]),
availableAmount: is721 ? 1 : uint16(cd.lendAmount[i]),
paymentToken: cd.paymentToken[i]
});
emit IRegistry.Lend(
is721,
msg.sender,
cd.nftAddress[cd.left],
cd.tokenID[i],
lendingID,
cd.maxRentDuration[i],
cd.dailyRentPrice[i],
is721 ? 1 : uint16(cd.lendAmount[i]),
cd.paymentToken[i]
);
lendingID++;
}
safeTransfer(
cd,
msg.sender,
address(this),
sliceArr(cd.tokenID, cd.left, cd.right, 0),
sliceArr(cd.lendAmount, cd.left, cd.right, 0)
);
}
function handleStopLend(IRegistry.CallData memory cd) private {
uint256[] memory lentAmounts = new uint256[](cd.right - cd.left);
for (uint256 i = cd.left; i < cd.right; i++) {
bytes32 lendingIdentifier = keccak256(
abi.encodePacked(
cd.nftAddress[cd.left],
cd.tokenID[i],
cd.lendingID[i]
)
);
Lending storage lending = lendings[lendingIdentifier];
ensureIsNotNull(lending);
ensureIsStoppable(lending, msg.sender);
require(
cd.nftStandard[i] == lending.nftStandard,
"ReNFT::invalid nft standard"
);
require(
lending.lendAmount == lending.availableAmount,
"ReNFT::actively rented"
);
lentAmounts[i - cd.left] = lending.lendAmount;
emit IRegistry.StopLend(cd.lendingID[i], uint32(block.timestamp));
delete lendings[lendingIdentifier];
}
safeTransfer(
cd,
address(this),
msg.sender,
sliceArr(cd.tokenID, cd.left, cd.right, 0),
sliceArr(lentAmounts, cd.left, cd.right, cd.left)
);
}
function handleRent(IRegistry.CallData memory cd) private {
for (uint256 i = cd.left; i < cd.right; i++) {
bytes32 lendingIdentifier = keccak256(
abi.encodePacked(
cd.nftAddress[cd.left],
cd.tokenID[i],
cd.lendingID[i]
)
);
bytes32 rentingIdentifier = keccak256(
abi.encodePacked(
cd.nftAddress[cd.left],
cd.tokenID[i],
rentingID
)
);
IRegistry.Lending storage lending = lendings[lendingIdentifier];
IRegistry.Renting storage renting = rentings[rentingIdentifier];
ensureIsNotNull(lending);
ensureIsNull(renting);
ensureIsRentable(lending, cd, i, msg.sender);
require(
cd.nftStandard[i] == lending.nftStandard,
"ReNFT::invalid nft standard"
);
require(
cd.rentAmount[i] <= lending.availableAmount,
"ReNFT::invalid rent amount"
);
uint8 paymentTokenIx = uint8(lending.paymentToken);
address paymentToken = resolver.getPaymentToken(paymentTokenIx);
uint256 decimals = ERC20(paymentToken).decimals();
{
uint256 scale = 10**decimals;
uint256 rentPrice = cd.rentAmount[i] *
cd.rentDuration[i] *
unpackPrice(lending.dailyRentPrice, scale);
require(rentPrice > 0, "ReNFT::rent price is zero");
ERC20(paymentToken).safeTransferFrom(
msg.sender,
address(this),
rentPrice
);
}
rentings[rentingIdentifier] = IRegistry.Renting({
renterAddress: payable(msg.sender),
rentAmount: uint16(cd.rentAmount[i]),
rentDuration: cd.rentDuration[i],
rentedAt: uint32(block.timestamp)
});
lendings[lendingIdentifier].availableAmount -= uint16(
cd.rentAmount[i]
);
emit IRegistry.Rent(
msg.sender,
cd.lendingID[i],
rentingID,
uint16(cd.rentAmount[i]),
cd.rentDuration[i],
renting.rentedAt
);
rentingID++;
}
}
function handleStopRent(IRegistry.CallData memory cd) private {
for (uint256 i = cd.left; i < cd.right; i++) {
bytes32 lendingIdentifier = keccak256(
abi.encodePacked(
cd.nftAddress[cd.left],
cd.tokenID[i],
cd.lendingID[i]
)
);
bytes32 rentingIdentifier = keccak256(
abi.encodePacked(
cd.nftAddress[cd.left],
cd.tokenID[i],
cd.rentingID[i]
)
);
IRegistry.Lending storage lending = lendings[lendingIdentifier];
IRegistry.Renting storage renting = rentings[rentingIdentifier];
ensureIsNotNull(lending);
ensureIsNotNull(renting);
ensureIsReturnable(renting, msg.sender, block.timestamp);
require(
cd.nftStandard[i] == lending.nftStandard,
"ReNFT::invalid nft standard"
);
require(
renting.rentAmount <= lending.lendAmount,
"ReNFT::critical error"
);
uint256 secondsSinceRentStart = block.timestamp - renting.rentedAt;
distributePayments(lending, renting, secondsSinceRentStart);
lendings[lendingIdentifier].availableAmount += renting.rentAmount;
emit IRegistry.StopRent(cd.rentingID[i], uint32(block.timestamp));
delete rentings[rentingIdentifier];
}
}
function handleClaimRent(CallData memory cd) private {
for (uint256 i = cd.left; i < cd.right; i++) {
bytes32 lendingIdentifier = keccak256(
abi.encodePacked(
cd.nftAddress[cd.left],
cd.tokenID[i],
cd.lendingID[i]
)
);
bytes32 rentingIdentifier = keccak256(
abi.encodePacked(
cd.nftAddress[cd.left],
cd.tokenID[i],
cd.rentingID[i]
)
);
IRegistry.Lending storage lending = lendings[lendingIdentifier];
IRegistry.Renting storage renting = rentings[rentingIdentifier];
ensureIsNotNull(lending);
ensureIsNotNull(renting);
ensureIsClaimable(renting, block.timestamp);
distributeClaimPayment(lending, renting);
lending.availableAmount += renting.rentAmount;
emit IRegistry.RentClaimed(
cd.rentingID[i],
uint32(block.timestamp)
);
delete rentings[rentingIdentifier];
}
}
function bundleCall(
function(IRegistry.CallData memory) handler,
IRegistry.CallData memory cd
) private {
require(cd.nftAddress.length > 0, "ReNFT::no nfts");
while (cd.right != cd.nftAddress.length) {
if (
(cd.nftAddress[cd.left] == cd.nftAddress[cd.right]) &&
(cd.nftStandard[cd.right] == IRegistry.NFTStandard.E1155)
) {
cd.right++;
} else {
handler(cd);
cd.left = cd.right;
cd.right++;
}
}
handler(cd);
}
function takeFee(uint256 rentAmt, IResolver.PaymentToken paymentToken)
private
returns (uint256 fee)
{
fee = rentAmt * rentFee;
fee /= 10000;
uint8 paymentTokenIx = uint8(paymentToken);
ERC20 pmtToken = ERC20(resolver.getPaymentToken(paymentTokenIx));
pmtToken.safeTransfer(beneficiary, fee);
}
function distributePayments(
IRegistry.Lending memory lending,
IRegistry.Renting memory renting,
uint256 secondsSinceRentStart
) private {
uint8 paymentTokenIx = uint8(lending.paymentToken);
address pmtToken = resolver.getPaymentToken(paymentTokenIx);
uint256 decimals = ERC20(pmtToken).decimals();
uint256 scale = 10**decimals;
uint256 rentPrice = renting.rentAmount *
unpackPrice(lending.dailyRentPrice, scale);
uint256 totalRenterPmt = rentPrice * renting.rentDuration;
uint256 sendLenderAmt = (secondsSinceRentStart * rentPrice) /
SECONDS_IN_DAY;
require(totalRenterPmt > 0, "ReNFT::total renter payment is zero");
require(sendLenderAmt > 0, "ReNFT::lender payment is zero");
uint256 sendRenterAmt = totalRenterPmt - sendLenderAmt;
if (rentFee != 0) {
uint256 takenFee = takeFee(sendLenderAmt, lending.paymentToken);
sendLenderAmt -= takenFee;
}
ERC20(pmtToken).safeTransfer(lending.lenderAddress, sendLenderAmt);
if (sendRenterAmt > 0) {
ERC20(pmtToken).safeTransfer(renting.renterAddress, sendRenterAmt);
}
}
function distributeClaimPayment(
IRegistry.Lending memory lending,
IRegistry.Renting memory renting
) private {
uint8 paymentTokenIx = uint8(lending.paymentToken);
ERC20 paymentToken = ERC20(resolver.getPaymentToken(paymentTokenIx));
uint256 decimals = ERC20(paymentToken).decimals();
uint256 scale = 10**decimals;
uint256 rentPrice = renting.rentAmount *
unpackPrice(lending.dailyRentPrice, scale);
uint256 finalAmt = rentPrice * renting.rentDuration;
uint256 takenFee = 0;
if (rentFee != 0) {
takenFee = takeFee(
finalAmt,
IResolver.PaymentToken(paymentTokenIx)
);
}
paymentToken.safeTransfer(lending.lenderAddress, finalAmt - takenFee);
}
function safeTransfer(
CallData memory cd,
address from,
address to,
uint256[] memory tokenID,
uint256[] memory lendAmount
) private {
if (cd.nftStandard[cd.left] == IRegistry.NFTStandard.E721) {
IERC721(cd.nftAddress[cd.left]).transferFrom(
from,
to,
cd.tokenID[cd.left]
);
} else {
IERC1155(cd.nftAddress[cd.left]).safeBatchTransferFrom(
from,
to,
tokenID,
lendAmount,
""
);
}
}
function getLending(
address nftAddress,
uint256 tokenID,
uint256 _lendingID
)
external
view
returns (
uint8,
address,
uint8,
bytes4,
uint16,
uint16,
uint8
)
{
bytes32 identifier = keccak256(
abi.encodePacked(nftAddress, tokenID, _lendingID)
);
IRegistry.Lending storage lending = lendings[identifier];
return (
uint8(lending.nftStandard),
lending.lenderAddress,
lending.maxRentDuration,
lending.dailyRentPrice,
lending.lendAmount,
lending.availableAmount,
uint8(lending.paymentToken)
);
}
function getRenting(
address nftAddress,
uint256 tokenID,
uint256 _rentingID
)
external
view
returns (
address,
uint16,
uint8,
uint32
)
{
bytes32 identifier = keccak256(
abi.encodePacked(nftAddress, tokenID, _rentingID)
);
IRegistry.Renting storage renting = rentings[identifier];
return (
renting.renterAddress,
renting.rentAmount,
renting.rentDuration,
renting.rentedAt
);
}
function createLendCallData(
IRegistry.NFTStandard[] memory nftStandard,
address[] memory nftAddress,
uint256[] memory tokenID,
uint256[] memory lendAmount,
uint8[] memory maxRentDuration,
bytes4[] memory dailyRentPrice,
IResolver.PaymentToken[] memory paymentToken
) private pure returns (CallData memory cd) {
cd = CallData({
left: 0,
right: 1,
nftStandard: nftStandard,
nftAddress: nftAddress,
tokenID: tokenID,
lendAmount: lendAmount,
lendingID: new uint256[](0),
rentingID: new uint256[](0),
rentDuration: new uint8[](0),
rentAmount: new uint256[](0),
maxRentDuration: maxRentDuration,
dailyRentPrice: dailyRentPrice,
paymentToken: paymentToken
});
}
function createRentCallData(
IRegistry.NFTStandard[] memory nftStandard,
address[] memory nftAddress,
uint256[] memory tokenID,
uint256[] memory _lendingID,
uint8[] memory rentDuration,
uint256[] memory rentAmount
) private pure returns (CallData memory cd) {
cd = CallData({
left: 0,
right: 1,
nftStandard: nftStandard,
nftAddress: nftAddress,
tokenID: tokenID,
lendAmount: new uint256[](0),
lendingID: _lendingID,
rentingID: new uint256[](0),
rentDuration: rentDuration,
rentAmount: rentAmount,
maxRentDuration: new uint8[](0),
dailyRentPrice: new bytes4[](0),
paymentToken: new IResolver.PaymentToken[](0)
});
}
function createActionCallData(
IRegistry.NFTStandard[] memory nftStandard,
address[] memory nftAddress,
uint256[] memory tokenID,
uint256[] memory _lendingID,
uint256[] memory _rentingID
) private pure returns (CallData memory cd) {
cd = CallData({
left: 0,
right: 1,
nftStandard: nftStandard,
nftAddress: nftAddress,
tokenID: tokenID,
lendAmount: new uint256[](0),
lendingID: _lendingID,
rentingID: _rentingID,
rentDuration: new uint8[](0),
rentAmount: new uint256[](0),
maxRentDuration: new uint8[](0),
dailyRentPrice: new bytes4[](0),
paymentToken: new IResolver.PaymentToken[](0)
});
}
function unpackPrice(bytes4 price, uint256 scale)
private
pure
returns (uint256)
{
ensureIsUnpackablePrice(price, scale);
uint16 whole = uint16(bytes2(price));
uint16 decimal = uint16(bytes2(price << 16));
uint256 decimalScale = scale / 10000;
if (whole > 9999) {
whole = 9999;
}
if (decimal > 9999) {
decimal = 9999;
}
uint256 w = whole * scale;
uint256 d = decimal * decimalScale;
uint256 fullPrice = w + d;
return fullPrice;
}
function sliceArr(
uint256[] memory arr,
uint256 fromIx,
uint256 toIx,
uint256 arrOffset
) private pure returns (uint256[] memory r) {
r = new uint256[](toIx - fromIx);
for (uint256 i = fromIx; i < toIx; i++) {
r[i - fromIx] = arr[i - arrOffset];
}
}
function ensureIsNotZeroAddr(address addr) private pure {
require(addr != address(0), "ReNFT::zero address");
}
function ensureIsZeroAddr(address addr) private pure {
require(addr == address(0), "ReNFT::not a zero address");
}
function ensureIsNull(Lending memory lending) private pure {
ensureIsZeroAddr(lending.lenderAddress);
require(lending.maxRentDuration == 0, "ReNFT::duration not zero");
require(lending.dailyRentPrice == 0, "ReNFT::rent price not zero");
}
function ensureIsNotNull(Lending memory lending) private pure {
ensureIsNotZeroAddr(lending.lenderAddress);
require(lending.maxRentDuration != 0, "ReNFT::duration zero");
require(lending.dailyRentPrice != 0, "ReNFT::rent price is zero");
}
function ensureIsNull(Renting memory renting) private pure {
ensureIsZeroAddr(renting.renterAddress);
require(renting.rentDuration == 0, "ReNFT::duration not zero");
require(renting.rentedAt == 0, "ReNFT::rented at not zero");
}
function ensureIsNotNull(Renting memory renting) private pure {
ensureIsNotZeroAddr(renting.renterAddress);
require(renting.rentDuration != 0, "ReNFT::duration is zero");
require(renting.rentedAt != 0, "ReNFT::rented at is zero");
}
function ensureIsLendable(CallData memory cd, uint256 i) private pure {
require(cd.lendAmount[i] > 0, "ReNFT::lend amount is zero");
require(cd.lendAmount[i] <= type(uint16).max, "ReNFT::not uint16");
require(cd.maxRentDuration[i] > 0, "ReNFT::duration is zero");
require(cd.maxRentDuration[i] <= type(uint8).max, "ReNFT::not uint8");
require(uint32(cd.dailyRentPrice[i]) > 0, "ReNFT::rent price is zero");
}
function ensureIsRentable(
Lending memory lending,
CallData memory cd,
uint256 i,
address msgSender
) private pure {
require(msgSender != lending.lenderAddress, "ReNFT::cant rent own nft");
require(cd.rentDuration[i] <= type(uint8).max, "ReNFT::not uint8");
require(cd.rentDuration[i] > 0, "ReNFT::duration is zero");
require(cd.rentAmount[i] <= type(uint16).max, "ReNFT::not uint16");
require(cd.rentAmount[i] > 0, "ReNFT::rentAmount is zero");
require(
cd.rentDuration[i] <= lending.maxRentDuration,
"ReNFT::rent duration exceeds allowed max"
);
}
function ensureIsReturnable(
Renting memory renting,
address msgSender,
uint256 blockTimestamp
) private pure {
require(renting.renterAddress == msgSender, "ReNFT::not renter");
require(
!isPastReturnDate(renting, blockTimestamp),
"ReNFT::past return date"
);
}
function ensureIsStoppable(Lending memory lending, address msgSender)
private
pure
{
require(lending.lenderAddress == msgSender, "ReNFT::not lender");
}
function ensureIsUnpackablePrice(bytes4 price, uint256 scale) private pure {
require(uint32(price) > 0, "ReNFT::invalid price");
require(scale >= 10000, "ReNFT::invalid scale");
}
function ensureTokenNotSentinel(uint8 paymentIx) private pure {
require(paymentIx > 0, "ReNFT::token is sentinel");
}
function ensureIsClaimable(
IRegistry.Renting memory renting,
uint256 blockTimestamp
) private pure {
require(
isPastReturnDate(renting, blockTimestamp),
"ReNFT::return date not passed"
);
}
function isPastReturnDate(Renting memory renting, uint256 nowTime)
private
pure
returns (bool)
{
require(nowTime > renting.rentedAt, "ReNFT::now before rented");
return
nowTime - renting.rentedAt > renting.rentDuration * SECONDS_IN_DAY;
}
function setRentFee(uint256 newRentFee) external onlyAdmin {
require(newRentFee < 10000, "ReNFT::fee exceeds 100pct");
rentFee = newRentFee;
}
function setBeneficiary(address payable newBeneficiary) external onlyAdmin {
beneficiary = newBeneficiary;
}
function setPaused(bool newPaused) external onlyAdmin {
paused = newPaused;
}
}
