80 lines
2.8 KiB
Solidity
80 lines
2.8 KiB
Solidity
// SPDX-License-Identifier: MIT
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pragma solidity ^0.8.0;
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import "../interfaces/IYTAssetVault.sol";
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import "@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol";
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import "@openzeppelin/contracts-upgradeable/proxy/utils/UUPSUpgradeable.sol";
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import {AggregatorV3Interface} from "@chainlink/contracts/src/v0.8/shared/interfaces/AggregatorV3Interface.sol";
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contract LendingPriceFeed is OwnableUpgradeable, UUPSUpgradeable {
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address public usdcAddress;
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AggregatorV3Interface internal usdcPriceFeed;
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/// @notice 价格过期阈值（秒）
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uint256 public priceStalenesThreshold;
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error InvalidUsdcAddress();
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error InvalidUsdcPriceFeedAddress();
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error InvalidChainlinkPrice();
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error StalePrice();
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/// @custom:oz-upgrades-unsafe-allow constructor
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constructor() {
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_disableInitializers();
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}
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function initialize(address _usdcAddress, address _usdcPriceFeed) external initializer {
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__UUPSUpgradeable_init();
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__Ownable_init(msg.sender);
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if (_usdcAddress == address(0)) revert InvalidUsdcAddress();
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if (_usdcPriceFeed == address(0)) revert InvalidUsdcPriceFeedAddress();
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usdcAddress = _usdcAddress;
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usdcPriceFeed = AggregatorV3Interface(_usdcPriceFeed);
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priceStalenesThreshold = 3600; // 默认1小时
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}
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function _authorizeUpgrade(address newImplementation) internal override onlyOwner {}
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function setUsdcAddress(address _usdcAddress) external onlyOwner {
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if (_usdcAddress == address(0)) revert InvalidUsdcAddress();
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usdcAddress = _usdcAddress;
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}
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/**
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* @notice 设置价格过期阈值
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* @param _threshold 阈值（秒），例如：3600 = 1小时，86400 = 24小时
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*/
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function setPriceStalenessThreshold(uint256 _threshold) external onlyOwner {
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require(_threshold > 0 && _threshold <= 7 days, "Invalid threshold");
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priceStalenesThreshold = _threshold;
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}
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function getPrice(address _token) external view returns (uint256) {
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if (_token == usdcAddress) {
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return _getUSDCPrice();
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}
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return IYTAssetVault(_token).ytPrice();
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}
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function _getUSDCPrice() internal view returns (uint256) {
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(
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uint80 roundId,
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int256 price,
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/* uint256 startedAt */,
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uint256 updatedAt,
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uint80 answeredInRound
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) = usdcPriceFeed.latestRoundData();
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// 价格有效性检查
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if (price <= 0) revert InvalidChainlinkPrice();
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// 新鲜度检查：确保价格数据不过期
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if (updatedAt == 0) revert StalePrice();
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if (answeredInRound < roundId) revert StalePrice();
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if (block.timestamp - updatedAt > priceStalenesThreshold) revert StalePrice();
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return uint256(price) * 1e22; // 1e22 = 10^(30-8)
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}
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}
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