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https://github.com/Instadapp/dsa-resolvers-deprecated.git
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Thrilok kumar
GitHub
commit
aec8ff4d22
272
contracts/protocols/reflexer.sol
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272
contracts/protocols/reflexer.sol
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/**
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*Submitted for verification at Etherscan.io on 2020-07-29
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*/
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pragma solidity ^0.6.0;
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pragma experimental ABIEncoderV2;
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interface ManagerLike {
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function collateralTypes(uint) external view returns (bytes32);
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function ownsSAFE(uint) external view returns (address);
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function safes(uint) external view returns (address);
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function safeEngine() external view returns (address);
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}
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interface GetSafesLike {
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function getSafesAsc(address, address) external view returns (uint[] memory, address[] memory, bytes32[] memory);
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}
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interface SAFEEngineLike {
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function collateralTypes(bytes32) external view returns (uint, uint, uint, uint, uint);
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function coinBalance(address) external view returns (uint);
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function safes(bytes32, address) external view returns (uint, uint);
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function tokenCollateral(bytes32, address) external view returns (uint);
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}
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interface TaxCollectorLike {
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function collateralTypes(bytes32) external view returns (uint, uint);
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function globalStabilityFee() external view returns (uint);
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}
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interface OracleRelayerLike {
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function collateralTypes(bytes32) external view returns (OracleLike, uint, uint);
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function redemptionRate() external view returns (uint);
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}
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interface OracleLike {
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function getResultWithValidity() external view returns (bytes32, bool);
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}
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contract DSMath {
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function add(uint x, uint y) internal pure returns (uint z) {
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require((z = x + y) >= x, "math-not-safe");
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}
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function sub(uint x, uint y) internal pure returns (uint z) {
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z = x - y <= x ? x - y : 0;
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}
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function mul(uint x, uint y) internal pure returns (uint z) {
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require(y == 0 || (z = x * y) / y == x, "math-not-safe");
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}
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uint constant WAD = 10 ** 18;
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uint constant RAY = 10 ** 27;
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function rmul(uint x, uint y) internal pure returns (uint z) {
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z = add(mul(x, y), RAY / 2) / RAY;
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}
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function wmul(uint x, uint y) internal pure returns (uint z) {
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z = add(mul(x, y), WAD / 2) / WAD;
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}
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function rdiv(uint x, uint y) internal pure returns (uint z) {
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z = add(mul(x, RAY), y / 2) / y;
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}
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function wdiv(uint x, uint y) internal pure returns (uint z) {
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z = add(mul(x, WAD), y / 2) / y;
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}
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}
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contract Helpers is DSMath {
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struct SafeData {
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uint id;
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address owner;
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string colType;
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uint collateral;
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uint debt;
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uint adjustedDebt;
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uint liquidatedCol;
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uint borrowRate;
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uint colPrice;
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uint liquidationRatio;
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address safeAddress;
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}
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struct ColInfo {
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uint borrowRate;
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uint price;
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uint liquidationRatio;
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uint debtCeiling;
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uint debtFloor;
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uint totalDebt;
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}
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struct ReflexerAddresses {
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address manager;
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address safeEngine;
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address taxCollector;
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address oracleRelayer;
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address getSafes;
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}
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/**
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* @dev get Reflexer Address contract
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*/
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function getReflexerAddresses() public pure returns (ReflexerAddresses memory) {
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return ReflexerAddresses(
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0xEfe0B4cA532769a3AE758fD82E1426a03A94F185, // manager
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0xCC88a9d330da1133Df3A7bD823B95e52511A6962, // safeEngine
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0xcDB05aEda142a1B0D6044C09C64e4226c1a281EB, // taxCollector
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0x4ed9C0dCa0479bC64d8f4EB3007126D5791f7851, // oracleRelayer
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0xdf4BC9aA98cC8eCd90Ba2BEe73aD4a1a9C8d202B // getSafes
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);
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}
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/**
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* @dev Convert String to bytes32.
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*/
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function stringToBytes32(string memory str) internal pure returns (bytes32 result) {
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require(bytes(str).length != 0, "String-Empty");
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// solium-disable-next-line security/no-inline-assembly
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assembly {
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result := mload(add(str, 32))
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}
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}
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/**
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* @dev Convert bytes32 to String.
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*/
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function bytes32ToString(bytes32 _bytes32) internal pure returns (string memory) {
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bytes32 _temp;
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uint count;
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for (uint256 i; i < 32; i++) {
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_temp = _bytes32[i];
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if( _temp != bytes32(0)) {
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count += 1;
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}
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}
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bytes memory bytesArray = new bytes(count);
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for (uint256 i; i < count; i++) {
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bytesArray[i] = (_bytes32[i]);
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}
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return (string(bytesArray));
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}
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function getFee(bytes32 collateralType) internal view returns (uint fee) {
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address taxCollector = getReflexerAddresses().taxCollector;
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(uint stabilityFee,) = TaxCollectorLike(taxCollector).collateralTypes(collateralType);
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uint globalStabilityFee = TaxCollectorLike(taxCollector).globalStabilityFee();
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fee = add(stabilityFee, globalStabilityFee);
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}
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function getColPrice(bytes32 collateralType) internal view returns (uint price) {
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address oracleRelayer = getReflexerAddresses().oracleRelayer;
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address safeEngine = getReflexerAddresses().safeEngine;
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(, uint safetyCRatio,) = OracleRelayerLike(oracleRelayer).collateralTypes(collateralType);
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(,,uint spotPrice,,) = SAFEEngineLike(safeEngine).collateralTypes(collateralType);
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price = rmul(safetyCRatio, spotPrice);
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}
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function getColRatio(bytes32 collateralType) internal view returns (uint ratio) {
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address oracleRelayer = getReflexerAddresses().oracleRelayer;
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(, ratio,) = OracleRelayerLike(oracleRelayer).collateralTypes(collateralType);
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}
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function getDebtState(bytes32 collateralType) internal view returns (uint debtCeiling, uint debtFloor, uint totalDebt) {
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address safeEngine = getReflexerAddresses().safeEngine;
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(uint globalDebt,uint rate,,uint debtCeilingRad, uint debtFloorRad) = SAFEEngineLike(safeEngine).collateralTypes(collateralType);
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debtCeiling = debtCeilingRad / 10 ** 45;
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debtFloor = debtFloorRad / 10 ** 45;
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totalDebt = rmul(globalDebt, rate);
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}
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}
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contract SafeResolver is Helpers {
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function getSafes(address owner) external view returns (SafeData[] memory) {
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address manager = getReflexerAddresses().manager;
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address safeManger = getReflexerAddresses().getSafes;
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(uint[] memory ids, address[] memory handlers, bytes32[] memory collateralTypes) = GetSafesLike(safeManger).getSafesAsc(manager, owner);
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SafeData[] memory safes = new SafeData[](ids.length);
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for (uint i = 0; i < ids.length; i++) {
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(uint collateral, uint debt) = SAFEEngineLike(ManagerLike(manager).safeEngine()).safes(collateralTypes[i], handlers[i]);
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(,uint rate, uint priceMargin,,) = SAFEEngineLike(ManagerLike(manager).safeEngine()).collateralTypes(collateralTypes[i]);
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uint safetyCRatio = getColRatio(collateralTypes[i]);
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safes[i] = SafeData(
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ids[i],
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owner,
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bytes32ToString(collateralTypes[i]),
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collateral,
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debt,
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rmul(debt,rate),
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SAFEEngineLike(ManagerLike(manager).safeEngine()).tokenCollateral(collateralTypes[i], handlers[i]),
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getFee(collateralTypes[i]),
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rmul(priceMargin, safetyCRatio),
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safetyCRatio,
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handlers[i]
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);
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}
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return safes;
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}
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function getSafeById(uint id) external view returns (SafeData memory) {
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address manager = getReflexerAddresses().manager;
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address handler = ManagerLike(manager).safes(id);
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bytes32 collateralType = ManagerLike(manager).collateralTypes(id);
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(uint collateral, uint debt) = SAFEEngineLike(ManagerLike(manager).safeEngine()).safes(collateralType, handler);
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(,uint rate, uint priceMargin,,) = SAFEEngineLike(ManagerLike(manager).safeEngine()).collateralTypes(collateralType);
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uint safetyCRatio = getColRatio(collateralType);
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uint feeRate = getFee(collateralType);
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SafeData memory safe = SafeData(
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id,
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ManagerLike(manager).ownsSAFE(id),
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bytes32ToString(collateralType),
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collateral,
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debt,
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rmul(debt,rate),
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SAFEEngineLike(ManagerLike(manager).safeEngine()).tokenCollateral(collateralType, handler),
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feeRate,
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rmul(priceMargin, safetyCRatio),
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safetyCRatio,
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handler
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);
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return safe;
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}
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function getColInfo(string[] memory name) public view returns (ColInfo[] memory) {
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ColInfo[] memory colInfo = new ColInfo[](name.length);
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for (uint i = 0; i < name.length; i++) {
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bytes32 collateralType = stringToBytes32(name[i]);
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(uint debtCeiling, uint debtFloor, uint totalDebt) = getDebtState(collateralType);
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colInfo[i] = ColInfo(
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getFee(collateralType),
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getColPrice(collateralType),
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getColRatio(collateralType),
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debtCeiling,
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debtFloor,
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totalDebt
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);
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}
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return colInfo;
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}
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}
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contract RedemptionRateResolver is SafeResolver {
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function getRedemptionRate() external view returns (uint redemptionRate) {
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address oracleRelayer = getReflexerAddresses().oracleRelayer;
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redemptionRate = OracleRelayerLike(oracleRelayer).redemptionRate();
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}
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}
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contract InstaReflexerResolver is RedemptionRateResolver {
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string public constant name = "Reflexer-Resolver-v1";
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}
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