From 30975805e054c9c99f5578a035f7804cf0ca1ff9 Mon Sep 17 00:00:00 2001 From: carlos53093 Date: Thu, 8 Feb 2024 15:13:50 -0500 Subject: [PATCH] add spark import connector --- .../connectors/spark-import/events.sol | 25 ++ .../connectors/spark-import/helpers.sol | 315 ++++++++++++++++++ .../connectors/spark-import/interface.sol | 95 ++++++ .../mainnet/connectors/spark-import/main.sol | 209 ++++++++++++ 4 files changed, 644 insertions(+) create mode 100644 contracts/mainnet/connectors/spark-import/events.sol create mode 100644 contracts/mainnet/connectors/spark-import/helpers.sol create mode 100644 contracts/mainnet/connectors/spark-import/interface.sol create mode 100644 contracts/mainnet/connectors/spark-import/main.sol diff --git a/contracts/mainnet/connectors/spark-import/events.sol b/contracts/mainnet/connectors/spark-import/events.sol new file mode 100644 index 00000000..cb3ed6b2 --- /dev/null +++ b/contracts/mainnet/connectors/spark-import/events.sol @@ -0,0 +1,25 @@ +//SPDX-License-Identifier: MIT +pragma solidity ^0.7.0; +pragma experimental ABIEncoderV2; + +contract Events { + event LogSparkImport( + address indexed user, + address[] stokens, + string[] supplyIds, + string[] borrowIds, + uint256[] flashLoanFees, + uint256[] supplyAmts, + uint256[] borrowAmts + ); + event LogSparkImportWithCollateral( + address indexed user, + address[] stokens, + string[] supplyIds, + string[] borrowIds, + uint256[] flashLoanFees, + uint256[] supplyAmts, + uint256[] borrowAmts, + bool[] enableCollateral + ); +} diff --git a/contracts/mainnet/connectors/spark-import/helpers.sol b/contracts/mainnet/connectors/spark-import/helpers.sol new file mode 100644 index 00000000..c04d7a8e --- /dev/null +++ b/contracts/mainnet/connectors/spark-import/helpers.sol @@ -0,0 +1,315 @@ +//SPDX-License-Identifier: MIT +pragma solidity ^0.7.0; + +import { DSMath } from "../../common/math.sol"; +import { Basic } from "../../common/basic.sol"; +import { TokenInterface, AccountInterface } from "../../common/interfaces.sol"; +import { SparkInterface, SparkPoolProviderInterface, SparkDataProviderInterface } from "./interface.sol"; +import "./events.sol"; +import "./interface.sol"; + +abstract contract Helper is DSMath, Basic { + /** + * @dev Spark referal code + */ + uint16 internal constant referalCode = 3228; + + /** + * @dev Spark Lending Pool Provider + */ + SparkPoolProviderInterface internal constant sparkProvider = + SparkPoolProviderInterface(0x02C3eA4e34C0cBd694D2adFa2c690EECbC1793eE); + + /** + * @dev Spark Protocol Data Provider + */ + SparkDataProviderInterface internal constant sparkData = + SparkDataProviderInterface(0xFc21d6d146E6086B8359705C8b28512a983db0cb); + + function getIsColl(address token, address user) + internal + view + returns (bool isCol) + { + (, , , , , , , , isCol) = sparkData.getUserReserveData(token, user); + } + + struct ImportData { + address[] _supplyTokens; + address[] _borrowTokens; + STokenInterface[] sTokens; + uint256[] supplyAmts; + uint256[] variableBorrowAmts; + uint256[] variableBorrowAmtsWithFee; + uint256[] stableBorrowAmts; + uint256[] stableBorrowAmtsWithFee; + uint256[] totalBorrowAmts; + uint256[] totalBorrowAmtsWithFee; + bool convertStable; + } + + struct ImportInputData { + address[] supplyTokens; + address[] borrowTokens; + bool convertStable; + uint256[] flashLoanFees; + } +} + +contract SparkHelpers is Helper { + function getBorrowAmount(address _token, address userAccount) + internal + view + returns (uint256 stableBorrow, uint256 variableBorrow) + { + ( + , + address stableDebtTokenAddress, + address variableDebtTokenAddress + ) = sparkData.getReserveTokensAddresses(_token); + + stableBorrow = STokenInterface(stableDebtTokenAddress).balanceOf( + userAccount + ); + variableBorrow = STokenInterface(variableDebtTokenAddress).balanceOf( + userAccount + ); + } + + function getBorrowAmounts( + address userAccount, + SparkInterface spark, + ImportInputData memory inputData, + ImportData memory data + ) internal returns (ImportData memory) { + if (inputData.borrowTokens.length > 0) { + data._borrowTokens = new address[](inputData.borrowTokens.length); + data.variableBorrowAmts = new uint256[]( + inputData.borrowTokens.length + ); + data.variableBorrowAmtsWithFee = new uint256[]( + inputData.borrowTokens.length + ); + data.stableBorrowAmts = new uint256[]( + inputData.borrowTokens.length + ); + data.stableBorrowAmtsWithFee = new uint256[]( + inputData.borrowTokens.length + ); + data.totalBorrowAmts = new uint256[](inputData.borrowTokens.length); + data.totalBorrowAmtsWithFee = new uint256[]( + inputData.borrowTokens.length + ); + for (uint256 i = 0; i < inputData.borrowTokens.length; i++) { + for (uint256 j = i; j < inputData.borrowTokens.length; j++) { + if (j != i) { + require( + inputData.borrowTokens[i] != + inputData.borrowTokens[j], + "token-repeated" + ); + } + } + } + for (uint256 i = 0; i < inputData.borrowTokens.length; i++) { + address _token = inputData.borrowTokens[i] == ethAddr + ? wethAddr + : inputData.borrowTokens[i]; + data._borrowTokens[i] = _token; + + ( + data.stableBorrowAmts[i], + data.variableBorrowAmts[i] + ) = getBorrowAmount(_token, userAccount); + + if (data.variableBorrowAmts[i] != 0) { + data.variableBorrowAmtsWithFee[i] = add( + data.variableBorrowAmts[i], + inputData.flashLoanFees[i] + ); + data.stableBorrowAmtsWithFee[i] = data.stableBorrowAmts[i]; + } else { + data.stableBorrowAmtsWithFee[i] = add( + data.stableBorrowAmts[i], + inputData.flashLoanFees[i] + ); + } + + data.totalBorrowAmts[i] = add( + data.stableBorrowAmts[i], + data.variableBorrowAmts[i] + ); + data.totalBorrowAmtsWithFee[i] = add( + data.stableBorrowAmtsWithFee[i], + data.variableBorrowAmtsWithFee[i] + ); + + if (data.totalBorrowAmts[i] > 0) { + uint256 _amt = data.totalBorrowAmts[i]; + TokenInterface(_token).approve(address(spark), _amt); + } + } + } + return data; + } + + function getSupplyAmounts( + address userAccount, + ImportInputData memory inputData, + ImportData memory data + ) internal view returns (ImportData memory) { + data.supplyAmts = new uint256[](inputData.supplyTokens.length); + data._supplyTokens = new address[](inputData.supplyTokens.length); + data.sTokens = new STokenInterface[](inputData.supplyTokens.length); + + for (uint256 i = 0; i < inputData.supplyTokens.length; i++) { + for (uint256 j = i; j < inputData.supplyTokens.length; j++) { + if (j != i) { + require( + inputData.supplyTokens[i] != inputData.supplyTokens[j], + "token-repeated" + ); + } + } + } + for (uint256 i = 0; i < inputData.supplyTokens.length; i++) { + address _token = inputData.supplyTokens[i] == ethAddr + ? wethAddr + : inputData.supplyTokens[i]; + (address _sToken, , ) = sparkData.getReserveTokensAddresses(_token); + data._supplyTokens[i] = _token; + data.sTokens[i] = STokenInterface(_sToken); + data.supplyAmts[i] = data.sTokens[i].balanceOf(userAccount); + } + + return data; + } + + function _paybackBehalfOne( + SparkInterface spark, + address token, + uint256 amt, + uint256 rateMode, + address user + ) private { + spark.repay(token, amt, rateMode, user); + } + + function _PaybackStable( + uint256 _length, + SparkInterface spark, + address[] memory tokens, + uint256[] memory amts, + address user + ) internal { + for (uint256 i = 0; i < _length; i++) { + if (amts[i] > 0) { + _paybackBehalfOne(spark, tokens[i], amts[i], 1, user); + } + } + } + + function _PaybackVariable( + uint256 _length, + SparkInterface spark, + address[] memory tokens, + uint256[] memory amts, + address user + ) internal { + for (uint256 i = 0; i < _length; i++) { + if (amts[i] > 0) { + _paybackBehalfOne(spark, tokens[i], amts[i], 2, user); + } + } + } + + function _TransferStokens( + uint256 _length, + SparkInterface spark, + STokenInterface[] memory stokenContracts, + uint256[] memory amts, + address[] memory tokens, + address userAccount + ) internal { + for (uint256 i = 0; i < _length; i++) { + if (amts[i] > 0) { + uint256 _amt = amts[i]; + require( + stokenContracts[i].transferFrom( + userAccount, + address(this), + _amt + ), + "allowance?" + ); + + if (!getIsColl(tokens[i], address(this))) { + spark.setUserUseReserveAsCollateral(tokens[i], true); + } + } + } + } + + function _TransferStokensWithCollateral( + uint256 _length, + SparkInterface spark, + STokenInterface[] memory stokenContracts, + uint256[] memory amts, + address[] memory tokens, + bool[] memory colEnable, + address userAccount + ) internal { + for (uint256 i = 0; i < _length; i++) { + if (amts[i] > 0) { + uint256 _amt = amts[i]; + require( + stokenContracts[i].transferFrom( + userAccount, + address(this), + _amt + ), + "allowance?" + ); + + if (!getIsColl(tokens[i], address(this))) { + spark.setUserUseReserveAsCollateral(tokens[i], colEnable[i]); + } + } + } + } + + function _BorrowVariable( + uint256 _length, + SparkInterface spark, + address[] memory tokens, + uint256[] memory amts + ) internal { + for (uint256 i = 0; i < _length; i++) { + if (amts[i] > 0) { + _borrowOne(spark, tokens[i], amts[i], 2); + } + } + } + + function _BorrowStable( + uint256 _length, + SparkInterface spark, + address[] memory tokens, + uint256[] memory amts + ) internal { + for (uint256 i = 0; i < _length; i++) { + if (amts[i] > 0) { + _borrowOne(spark, tokens[i], amts[i], 1); + } + } + } + + function _borrowOne( + SparkInterface spark, + address token, + uint256 amt, + uint256 rateMode + ) private { + spark.borrow(token, amt, rateMode, referalCode, address(this)); + } +} diff --git a/contracts/mainnet/connectors/spark-import/interface.sol b/contracts/mainnet/connectors/spark-import/interface.sol new file mode 100644 index 00000000..c300f8d8 --- /dev/null +++ b/contracts/mainnet/connectors/spark-import/interface.sol @@ -0,0 +1,95 @@ +//SPDX-License-Identifier: MIT +pragma solidity ^0.7.0; + +interface SparkInterface { + function supply( + address asset, + uint256 amount, + address onBehalfOf, + uint16 referralCode + ) external; + + function withdraw( + address _asset, + uint256 _amount, + address _to + ) external; + + function borrow( + address _asset, + uint256 _amount, + uint256 _interestRateMode, + uint16 _referralCode, + address _onBehalfOf + ) external; + + function repay( + address _asset, + uint256 _amount, + uint256 _rateMode, + address _onBehalfOf + ) external; + + function setUserUseReserveAsCollateral( + address _asset, + bool _useAsCollateral + ) external; + + function swapBorrowRateMode(address _asset, uint256 _rateMode) external; +} + +interface STokenInterface { + function scaledBalanceOf(address _user) external view returns (uint256); + + function isTransferAllowed(address _user, uint256 _amount) + external + view + returns (bool); + + function balanceOf(address _user) external view returns (uint256); + + function transferFrom( + address, + address, + uint256 + ) external returns (bool); + + function allowance(address, address) external returns (uint256); +} + +interface SparkPoolProviderInterface { + function getPool() external view returns (address); +} + +interface SparkDataProviderInterface { + function getReserveTokensAddresses(address _asset) + external + view + returns ( + address sTokenAddress, + address stableDebtTokenAddress, + address variableDebtTokenAddress + ); + + function getUserReserveData(address _asset, address _user) + external + view + returns ( + uint256 currentSTokenBalance, + uint256 currentStableDebt, + uint256 currentVariableDebt, + uint256 principalStableDebt, + uint256 scaledVariableDebt, + uint256 stableBorrowRate, + uint256 liquidityRate, + uint40 stableRateLastUpdated, + bool usageAsCollateralEnabled + ); +} + +interface SparkAddressProviderRegistryInterface { + function getAddressesProvidersList() + external + view + returns (address[] memory); +} diff --git a/contracts/mainnet/connectors/spark-import/main.sol b/contracts/mainnet/connectors/spark-import/main.sol new file mode 100644 index 00000000..04e919ab --- /dev/null +++ b/contracts/mainnet/connectors/spark-import/main.sol @@ -0,0 +1,209 @@ +//SPDX-License-Identifier: MIT +pragma solidity ^0.7.0; +pragma experimental ABIEncoderV2; +/** + * @title Spark import connector . + * @dev Import EOA's spark position to DSA's spark position + */ +import { TokenInterface, AccountInterface } from "../../common/interfaces.sol"; +import { SparkInterface, STokenInterface } from "./interface.sol"; +import "./helpers.sol"; +import "./events.sol"; + +contract SparkImportResolver is SparkHelpers { + function _importSpark(address userAccount, ImportInputData memory inputData) + internal + returns (string memory _eventName, bytes memory _eventParam) + { + require( + AccountInterface(address(this)).isAuth(userAccount), + "user-account-not-auth" + ); + + require(inputData.supplyTokens.length > 0, "0-length-not-allowed"); + + ImportData memory data; + + SparkInterface spark = SparkInterface(sparkProvider.getPool()); + + data = getBorrowAmounts(userAccount, spark, inputData, data); + data = getSupplyAmounts(userAccount, inputData, data); + + // payback borrowed amount; + _PaybackStable( + data._borrowTokens.length, + spark, + data._borrowTokens, + data.stableBorrowAmts, + userAccount + ); + _PaybackVariable( + data._borrowTokens.length, + spark, + data._borrowTokens, + data.variableBorrowAmts, + userAccount + ); + + // transfer sTokens to this address; + _TransferStokens( + data._supplyTokens.length, + spark, + data.sTokens, + data.supplyAmts, + data._supplyTokens, + userAccount + ); + + // borrow assets after migrating position + if (data.convertStable) { + _BorrowVariable( + data._borrowTokens.length, + spark, + data._borrowTokens, + data.totalBorrowAmtsWithFee + ); + } else { + _BorrowStable( + data._borrowTokens.length, + spark, + data._borrowTokens, + data.stableBorrowAmtsWithFee + ); + _BorrowVariable( + data._borrowTokens.length, + spark, + data._borrowTokens, + data.variableBorrowAmtsWithFee + ); + } + + _eventName = "LogSparkImport(address,bool,address[],address[],uint256[],uint256[],uint256[],uint256[])"; + _eventParam = abi.encode( + userAccount, + inputData.convertStable, + inputData.supplyTokens, + inputData.borrowTokens, + inputData.flashLoanFees, + data.supplyAmts, + data.stableBorrowAmts, + data.variableBorrowAmts + ); + } + + function _importSparkWithCollateral(address userAccount, ImportInputData memory inputData, bool[] memory enableCollateral) + internal + returns (string memory _eventName, bytes memory _eventParam) + { + require( + AccountInterface(address(this)).isAuth(userAccount), + "user-account-not-auth" + ); + + require(inputData.supplyTokens.length > 0, "0-length-not-allowed"); + require(enableCollateral.length == inputData.supplyTokens.length, "lengths-not-same"); + + ImportData memory data; + + SparkInterface spark = SparkInterface(sparkProvider.getPool()); + + data = getBorrowAmounts(userAccount, spark, inputData, data); + data = getSupplyAmounts(userAccount, inputData, data); + + // payback borrowed amount; + _PaybackStable( + data._borrowTokens.length, + spark, + data._borrowTokens, + data.stableBorrowAmts, + userAccount + ); + _PaybackVariable( + data._borrowTokens.length, + spark, + data._borrowTokens, + data.variableBorrowAmts, + userAccount + ); + + // transfer sTokens to this address; + _TransferStokensWithCollateral( + data._supplyTokens.length, + spark, + data.sTokens, + data.supplyAmts, + data._supplyTokens, + enableCollateral, + userAccount + ); + + // borrow assets after migrating position + if (data.convertStable) { + _BorrowVariable( + data._borrowTokens.length, + spark, + data._borrowTokens, + data.totalBorrowAmtsWithFee + ); + } else { + _BorrowStable( + data._borrowTokens.length, + spark, + data._borrowTokens, + data.stableBorrowAmtsWithFee + ); + _BorrowVariable( + data._borrowTokens.length, + spark, + data._borrowTokens, + data.variableBorrowAmtsWithFee + ); + } + + _eventName = "LogSparkImportWithCollateral(address,bool,address[],address[],uint256[],uint256[],uint256[],uint256[],bool[])"; + _eventParam = abi.encode( + userAccount, + inputData.convertStable, + inputData.supplyTokens, + inputData.borrowTokens, + inputData.flashLoanFees, + data.supplyAmts, + data.stableBorrowAmts, + data.variableBorrowAmts, + enableCollateral + ); + } + + /** + * @dev Import spark position . + * @notice Import EOA's spark position to DSA's spark position + * @param userAccount The address of the EOA from which spark position will be imported + * @param inputData The struct containing all the neccessary input data + */ + function importSpark(address userAccount, ImportInputData memory inputData) + external + payable + returns (string memory _eventName, bytes memory _eventParam) + { + (_eventName, _eventParam) = _importSpark(userAccount, inputData); + } + + /** + * @dev Import spark position (with collateral). + * @notice Import EOA's spark position to DSA's spark position + * @param userAccount The address of the EOA from which spark position will be imported + * @param inputData The struct containing all the neccessary input data + * @param enableCollateral The boolean array to enable selected collaterals in the imported position + */ + function importSparkWithCollateral(address userAccount, ImportInputData memory inputData, bool[] memory enableCollateral) + external + payable + returns (string memory _eventName, bytes memory _eventParam) + { + (_eventName, _eventParam) = _importSparkWithCollateral(userAccount, inputData, enableCollateral); + } +} + +contract ConnectV2SparkImport is SparkImportResolver { + string public constant name = "Spark-import-v1.1"; +}