Overview
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Latest 1 from a total of 1 transactions
Transaction Hash |
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0x60806040 | 13417946 | 1051 days ago | IN | 0 ETH | 0.08184256 |
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Contract Name:
StakedaoPricer
Compiler Version
v0.6.10+commit.00c0fcaf
Optimization Enabled:
Yes with 200 runs
Other Settings:
default evmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: MIT pragma solidity 0.6.10; import {ICurve} from "../interfaces/ICurve.sol"; import {IStakeDao} from "../interfaces/IStakeDao.sol"; import {OracleInterface} from "../interfaces/OracleInterface.sol"; import {SafeMath} from "../packages/oz/SafeMath.sol"; /** * Error Codes * P1: cannot deploy pricer, lpToken address cannot be 0 * P2: cannot deploy pricer, underlying address cannot be 0 * P3: cannot deploy pricer, oracle address cannot be 0 * P4: cannot deploy pricer, curve address cannot be 0 * P5: cannot retrieve price, underlying price is 0 * P6: cannot set expiry price in oracle, underlying price is 0 and has not been set * P7: cannot retrieve historical prices, getHistoricalPrice has been deprecated */ /** * @title StakedaoPricer * @author Opyn Team * @notice A Pricer contract for a Stakedao lpToken */ contract StakedaoPricer { using SafeMath for uint256; /// @notice curve pool ICurve public curve; /// @notice lpToken that this pricer will a get price for IStakeDao public lpToken; /// @notice opyn oracle address OracleInterface public oracle; /// @notice underlying asset for this lpToken address public underlying; /** * @param _lpToken lpToken asset * @param _underlying underlying asset for this lpToken * @param _oracle Opyn Oracle contract address * @param _curve curve pool contract address */ constructor( address _lpToken, address _underlying, address _oracle, address _curve ) public { require(_lpToken != address(0), "P1"); require(_underlying != address(0), "P2"); require(_oracle != address(0), "P3"); require(_curve != address(0), "P4"); lpToken = IStakeDao(_lpToken); underlying = _underlying; oracle = OracleInterface(_oracle); curve = ICurve(_curve); } /** * @notice get the live price for the asset * @dev overrides the getPrice function in OpynPricerInterface * @return price of 1 lpToken in USD, scaled by 1e8 */ function getPrice() external view returns (uint256) { uint256 underlyingPrice = oracle.getPrice(address(underlying)); require(underlyingPrice > 0, "P5"); return _underlyingPriceToYtokenPrice(underlyingPrice); } /** * @notice set the expiry price in the oracle * @dev requires that the underlying price has been set before setting a lpToken price * @param _expiryTimestamp expiry to set a price for */ function setExpiryPriceInOracle(uint256 _expiryTimestamp) external { (uint256 underlyingPriceExpiry, ) = oracle.getExpiryPrice(underlying, _expiryTimestamp); require(underlyingPriceExpiry > 0, "P6"); uint256 lpTokenPrice = _underlyingPriceToYtokenPrice(underlyingPriceExpiry); oracle.setExpiryPrice(address(lpToken), _expiryTimestamp, lpTokenPrice); } /** * @dev convert underlying price to lpToken price with the lpToken to underlying exchange rate * @param _underlyingPrice price of 1 underlying token (hardcoded 1e18 for WETH) in USD, scaled by 1e8 * @return price of 1 lpToken in USD, scaled by 1e8 */ function _underlyingPriceToYtokenPrice(uint256 _underlyingPrice) private view returns (uint256) { uint256 pricePerShare = lpToken.getPricePerFullShare(); // 18 decimals uint256 curvePrice = curve.get_virtual_price(); // 18 decimals // scale by 1e36 to return price of 1 lpToken in USD, scaled by 1e8 // assumes underlyingPrice is 1e8, curve price is 1e18, pricePerShare is 1e18 return pricePerShare.mul(_underlyingPrice).mul(curvePrice).div(1e36); } function getHistoricalPrice(uint80) external pure returns (uint256, uint256) { revert("P7"); } }
// SPDX-License-Identifier: MIT // openzeppelin-contracts v3.1.0 /* solhint-disable */ pragma solidity ^0.6.0; /** * @dev Wrappers over Solidity's arithmetic operations with added overflow * checks. * * Arithmetic operations in Solidity wrap on overflow. This can easily result * in bugs, because programmers usually assume that an overflow raises an * error, which is the standard behavior in high level programming languages. * `SafeMath` restores this intuition by reverting the transaction when an * operation overflows. * * Using this library instead of the unchecked operations eliminates an entire * class of bugs, so it's recommended to use it always. */ library SafeMath { /** * @dev Returns the addition of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `+` operator. * * Requirements: * - Addition cannot overflow. */ function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a, "SafeMath: addition overflow"); return c; } /** * @dev Returns the subtraction of two unsigned integers, reverting on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * - Subtraction cannot overflow. */ function sub(uint256 a, uint256 b) internal pure returns (uint256) { return sub(a, b, "SafeMath: subtraction overflow"); } /** * @dev Returns the subtraction of two unsigned integers, reverting with custom message on * overflow (when the result is negative). * * Counterpart to Solidity's `-` operator. * * Requirements: * - Subtraction cannot overflow. */ function sub( uint256 a, uint256 b, string memory errorMessage ) internal pure returns (uint256) { require(b <= a, errorMessage); uint256 c = a - b; return c; } /** * @dev Returns the multiplication of two unsigned integers, reverting on * overflow. * * Counterpart to Solidity's `*` operator. * * Requirements: * - Multiplication cannot overflow. */ function mul(uint256 a, uint256 b) internal pure returns (uint256) { // Gas optimization: this is cheaper than requiring 'a' not being zero, but the // benefit is lost if 'b' is also tested. // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522 if (a == 0) { return 0; } uint256 c = a * b; require(c / a == b, "SafeMath: multiplication overflow"); return c; } /** * @dev Returns the integer division of two unsigned integers. Reverts on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * - The divisor cannot be zero. */ function div(uint256 a, uint256 b) internal pure returns (uint256) { return div(a, b, "SafeMath: division by zero"); } /** * @dev Returns the integer division of two unsigned integers. Reverts with custom message on * division by zero. The result is rounded towards zero. * * Counterpart to Solidity's `/` operator. Note: this function uses a * `revert` opcode (which leaves remaining gas untouched) while Solidity * uses an invalid opcode to revert (consuming all remaining gas). * * Requirements: * - The divisor cannot be zero. */ function div( uint256 a, uint256 b, string memory errorMessage ) internal pure returns (uint256) { // Solidity only automatically asserts when dividing by 0 require(b > 0, errorMessage); uint256 c = a / b; // assert(a == b * c + a % b); // There is no case in which this doesn't hold return c; } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * Reverts when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * - The divisor cannot be zero. */ function mod(uint256 a, uint256 b) internal pure returns (uint256) { return mod(a, b, "SafeMath: modulo by zero"); } /** * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), * Reverts with custom message when dividing by zero. * * Counterpart to Solidity's `%` operator. This function uses a `revert` * opcode (which leaves remaining gas untouched) while Solidity uses an * invalid opcode to revert (consuming all remaining gas). * * Requirements: * - The divisor cannot be zero. */ function mod( uint256 a, uint256 b, string memory errorMessage ) internal pure returns (uint256) { require(b != 0, errorMessage); return a % b; } }
// SPDX-License-Identifier: UNLICENSED pragma solidity 0.6.10; interface OracleInterface { function isLockingPeriodOver(address _asset, uint256 _expiryTimestamp) external view returns (bool); function isDisputePeriodOver(address _asset, uint256 _expiryTimestamp) external view returns (bool); function getExpiryPrice(address _asset, uint256 _expiryTimestamp) external view returns (uint256, bool); function getDisputer() external view returns (address); function getPricer(address _asset) external view returns (address); function getPrice(address _asset) external view returns (uint256); function getPricerLockingPeriod(address _pricer) external view returns (uint256); function getPricerDisputePeriod(address _pricer) external view returns (uint256); function getChainlinkRoundData(address _asset, uint80 _roundId) external view returns (uint256, uint256); // Non-view function function setAssetPricer(address _asset, address _pricer) external; function setLockingPeriod(address _pricer, uint256 _lockingPeriod) external; function setDisputePeriod(address _pricer, uint256 _disputePeriod) external; function setExpiryPrice( address _asset, uint256 _expiryTimestamp, uint256 _price ) external; function disputeExpiryPrice( address _asset, uint256 _expiryTimestamp, uint256 _price ) external; function setDisputer(address _disputer) external; }
// SPDX-License-Identifier: MIT import {ERC20Interface} from "./ERC20Interface.sol"; pragma solidity 0.6.10; pragma experimental ABIEncoderV2; interface IStakeDao { function getPricePerFullShare() external view returns (uint256); }
// SPDX-License-Identifier: MIT pragma solidity 0.6.10; interface ICurve { function get_virtual_price() external view returns (uint256); }
/** * SPDX-License-Identifier: UNLICENSED */ pragma solidity 0.6.10; /** * @dev Interface of the ERC20 standard as defined in the EIP. */ interface ERC20Interface { /** * @dev Returns the amount of tokens in existence. */ function totalSupply() external view returns (uint256); /** * @dev Returns the amount of tokens owned by `account`. */ function balanceOf(address account) external view returns (uint256); /** * @dev Moves `amount` tokens from the caller's account to `recipient`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transfer(address recipient, uint256 amount) external returns (bool); /** * @dev Returns the remaining number of tokens that `spender` will be * allowed to spend on behalf of `owner` through {transferFrom}. This is * zero by default. * * This value changes when {approve} or {transferFrom} are called. */ function allowance(address owner, address spender) external view returns (uint256); /** * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. * * Returns a boolean value indicating whether the operation succeeded. * * IMPORTANT: Beware that changing an allowance with this method brings the risk * that someone may use both the old and the new allowance by unfortunate * transaction ordering. One possible solution to mitigate this race * condition is to first reduce the spender's allowance to 0 and set the * desired value afterwards: * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 * * Emits an {Approval} event. */ function approve(address spender, uint256 amount) external returns (bool); /** * @dev Moves `amount` tokens from `sender` to `recipient` using the * allowance mechanism. `amount` is then deducted from the caller's * allowance. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transferFrom( address sender, address recipient, uint256 amount ) external returns (bool); function decimals() external view returns (uint8); /** * @dev Emitted when `value` tokens are moved from one account (`from`) to * another (`to`). * * Note that `value` may be zero. */ event Transfer(address indexed from, address indexed to, uint256 value); /** * @dev Emitted when the allowance of a `spender` for an `owner` is set by * a call to {approve}. `value` is the new allowance. */ event Approval(address indexed owner, address indexed spender, uint256 value); }
{ "remappings": [], "optimizer": { "enabled": true, "runs": 200 }, "evmVersion": "istanbul", "libraries": {}, "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "devdoc", "userdoc", "metadata", "abi" ] } } }
Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
[{"inputs":[{"internalType":"address","name":"_lpToken","type":"address"},{"internalType":"address","name":"_underlying","type":"address"},{"internalType":"address","name":"_oracle","type":"address"},{"internalType":"address","name":"_curve","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"curve","outputs":[{"internalType":"contract ICurve","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint80","name":"","type":"uint80"}],"name":"getHistoricalPrice","outputs":[{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"pure","type":"function"},{"inputs":[],"name":"getPrice","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"lpToken","outputs":[{"internalType":"contract IStakeDao","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"oracle","outputs":[{"internalType":"contract OracleInterface","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_expiryTimestamp","type":"uint256"}],"name":"setExpiryPriceInOracle","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"underlying","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"}]
Contract Creation Code
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Deployed Bytecode
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
Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)
0000000000000000000000005af15da84a4a6edf2d9fa6720de921e1026e37b7000000000000000000000000853d955acef822db058eb8505911ed77f175b99e000000000000000000000000789cd7ab3742e23ce0952f6bc3eb3a73a0e08833000000000000000000000000d632f22692fac7611d2aa1c0d552930d43caed3b
-----Decoded View---------------
Arg [0] : _lpToken (address): 0x5af15DA84A4a6EDf2d9FA6720De921E1026E37b7
Arg [1] : _underlying (address): 0x853d955aCEf822Db058eb8505911ED77F175b99e
Arg [2] : _oracle (address): 0x789cD7AB3742e23Ce0952F6Bc3Eb3A73A0E08833
Arg [3] : _curve (address): 0xd632f22692FaC7611d2AA1C0D552930D43CAEd3B
-----Encoded View---------------
4 Constructor Arguments found :
Arg [0] : 0000000000000000000000005af15da84a4a6edf2d9fa6720de921e1026e37b7
Arg [1] : 000000000000000000000000853d955acef822db058eb8505911ed77f175b99e
Arg [2] : 000000000000000000000000789cd7ab3742e23ce0952f6bc3eb3a73a0e08833
Arg [3] : 000000000000000000000000d632f22692fac7611d2aa1c0d552930d43caed3b
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Multichain Portfolio | 26 Chains
Chain | Token | Portfolio % | Price | Amount | Value |
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