morpho-import

contracts/mainnet/connectors/morpho/morpho-aave/helpers.sol

@@ -2,9 +2,9 @@
 pragma solidity ^0.7.0;
 pragma experimental ABIEncoderV2;
 import "./interface.sol";
-import "../../common/stores.sol";
+import "../../../common/stores.sol";
-import "../../common/basic.sol";
+import "../../../common/basic.sol";
-import "../../common/interfaces.sol";
+import "../../../common/interfaces.sol";
 
 abstract contract Helpers is Stores, Basic {
 	IMorphoCore public constant MORPHO_AAVE =

contracts/mainnet/connectors/morpho/morpho-compound-import/events.sol

@@ -0,0 +1,14 @@
+// SPDX-License-Identifier: MIT
+pragma solidity ^0.7.6;
+pragma experimental ABIEncoderV2;
+
+contract Events {
+	event LogMorphoCompoundImport(
+		address indexed user,
+		address[] ctokens,
+		string[] supplyIds,
+		string[] borrowIds,
+		uint256[] supplyAmts,
+		uint256[] borrowAmts
+	);
+}

contracts/mainnet/connectors/morpho/morpho-compound-import/helpers.sol

@@ -0,0 +1,202 @@
+// SPDX-License-Identifier: MIT
+pragma solidity ^0.7.6;
+
+import { DSMath } from "../../../common/math.sol";
+import { Basic } from "../../../common/basic.sol";
+import { TokenInterface, AccountInterface } from "../../../common/interfaces.sol";
+import { ComptrollerInterface, CompoundMappingInterface, CETHInterface, CTokenInterface } from "./interface.sol";
+
+abstract contract Helpers is DSMath, Basic {
+	/**
+	 * @dev Compound CEth
+	 */
+	CETHInterface internal constant cEth =
+		CETHInterface(0x4Ddc2D193948926D02f9B1fE9e1daa0718270ED5);
+
+	/**
+	 * @dev Compound Comptroller
+	 */
+	ComptrollerInterface internal constant troller =
+		ComptrollerInterface(0x3d9819210A31b4961b30EF54bE2aeD79B9c9Cd3B);
+
+	/**
+	 * @dev Compound Mapping
+	 */
+	IMorphoLens internal constant morphoLens =
+		IMorphoLens(0x930f1b46e1D081Ec1524efD95752bE3eCe51EF67);
+
+	IMorpho internal constant morpho = IMorpho(0x8888882f8f843896699869179fB6E4f7e3B58888)
+
+	struct ImportData {
+		uint256[] borrowAmts;
+		uint256[] supplyAmts;
+		address[] borrowTokens;
+		address[] supplyTokens;
+		CTokenInterface[] borrowCtokens;
+		CTokenInterface[] supplyCtokens;
+		address[] supplyCtokensAddr;
+		address[] borrowCtokensAddr;
+	}
+
+	struct ImportInputData {
+		address userAccount;
+		address[] supplyCTokens;
+		address[] borrowCTokens;
+		uint256[] flashLoanFees;
+	}
+}
+
+contract MorphoCompoundHelper is Helpers {
+	/**
+	 * @notice fetch the borrow details of the user
+	 * @dev approve the cToken to spend (borrowed amount of) tokens to allow for repaying later
+	 * @param _importInputData the struct containing borrowIds of the users borrowed tokens
+	 * @param data struct used to store the final data on which the CompoundHelper contract functions operate
+	 * @return ImportData the final value of param data
+	 */
+	function getBorrowAmounts(
+		ImportInputData memory importInputData_,
+		ImportData memory data
+	) internal returns (ImportData memory) {
+		if (importInputData_.borrowCTokens.length > 0) {
+			// initialize arrays for borrow data
+			uint256 length_ = importInputData_.borrowCTokens.length;
+			data.borrowTokens = new address[](_length);
+			data.borrowCtokens = new CTokenInterface[](_length);
+			data.borrowCtokensAddr = new address[](_length);
+			data.borrowAmts = new uint256[](_length);
+
+			// populate the arrays with borrow tokens, cToken addresses and instances, and borrow amounts
+			for (uint256 i; i < _length; i++) {
+				address cToken_ = importInputData_.borrowCTokens[i];
+				CTokenInterface ctoken_ = CTokenInterface(cToken_);
+				
+				address token_;
+				token_ = cToken_ == address(cEth) ? wethAddr : ctoken_.underlying();
+
+				require(token_ != address(0), "invalid-ctoken-address");
+
+				data.borrowTokens[i] = token_;
+				data.borrowCtokens[i] = ctoken_;
+				data.borrowCtokensAddr[i] = cToken_;
+				(, , data.borrowAmts[i]) = morphoLens
+					.getCurrentBorrowBalanceInOf(
+						cToken_,
+						importInputData_.userAccount
+					);
+
+				// give the morpho approval to spend tokens
+				if (token_ != ethAddr && data.borrowAmts[i] > 0) {
+					// will be required when repaying the borrow amount on behalf of the user
+					TokenInterface(token_).approve(address(morpho), data.borrowAmts[i]);
+				}
+			}
+		}
+		return data;
+	}
+
+	/**
+	 * @notice fetch the supply details of the user
+	 * @dev only reads data from blockchain hence view
+	 * @param _importInputData the struct containing supplyIds of the users supplied tokens
+	 * @param data struct used to store the final data on which the CompoundHelper contract functions operate
+	 * @return ImportData the final value of param data
+	 */
+	function getSupplyAmounts(
+		ImportInputData memory importInputData_,
+		ImportData memory data
+	) internal view returns (ImportData memory) {
+		// initialize arrays for supply data
+		uint256 length_ = importInputData_.supplyCTokens.length;
+		data.supplyTokens = new address[](_length);
+		data.supplyCtokens = new CTokenInterface[](_length);
+		data.supplyCtokensAddr = new address[](_length);
+		data.supplyAmts = new uint256[](_length);
+
+		// populate arrays with supply data (supply tokens address, cToken addresses, cToken instances and supply amounts)
+		for (uint256 i; i < _length; i++) {
+			address cToken_ = importInputData_.supplyCTokens[i];
+			CTokenInterface ctoken_ = CTokenInterface(cToken_);
+			address token_ ;
+			token_ = cToken_ == address(cEth) ? wethAddr : ctoken_.underlying();
+
+			require(
+				token_ != address(0),
+				"invalid-ctoken-address"
+			);
+
+
+			data.supplyTokens[i] = token_;
+			data.supplyCtokens[i] = ctoken_;
+			data.supplyCtokensAddr[i] = (cToken_);
+			data.supplyAmts[i] = morpho.getCurrentSupplyBalanceInOf(
+				cToken_,
+				importInputData_.userAccount
+			);
+		}
+		return data;
+	}
+
+	/**
+	 * @notice repays the debt taken by user on Compound on its behalf to free its collateral for transfer
+	 * @dev uses the cEth contract for ETH repays, otherwise the general cToken interface
+	 * @param _userAccount the user address for which debt is to be repayed
+	 * @param _cTokenContracts array containing all interfaces to the cToken contracts in which the user has debt positions
+	 * @param _borrowAmts array containing the amount borrowed for each token
+	 */
+	function _paybackDebt(
+		address userAccount_,
+		address[] memory cTokens_,
+		uint256[] memory borrowAmts_
+	) internal {
+		uint256 length_ = cTokens.length;
+		for (uint256 i; i < length; ++i) {
+			if (borrowAmts_[i] > 0) {
+				morpho.repay(cTokens[i], userAccount_, borrowAmts_[i]);
+			}
+		}
+	}
+
+	/**
+	 * @notice used to transfer user's supply position on Compound to DSA
+	 * @dev uses the transferFrom token in cToken contracts to transfer positions, requires approval from user first
+	 * @param _userAccount address of the user account whose position is to be transferred
+	 * @param _cTokenContracts array containing all interfaces to the cToken contracts in which the user has supply positions
+	 * @param _amts array containing the amount supplied for each token
+	 */
+	function _transferTokensToDsa(
+		address userAccount_,
+		CTokenInterface[] memory cTokenContracts_,
+		uint256[] memory supplyAmts_
+	) internal {
+		uint256 length_ = cTokens_.length;
+		for (uint256 i; i < length_; ++i)
+			if (supplyAmts_[i] > 0)
+				require(
+					cTokenContracts_[i].transferFrom(
+						userAccount_,
+						address(this),
+						supplyAmts_[i]
+					),
+					"ctoken-transfer-failed-allowance?"
+				);
+	}
+
+	/**
+	 * @notice borrows the user's debt positions from Compound via DSA, so that its debt positions get imported to DSA
+	 * @dev actually borrow some extra amount than the original position to cover the flash loan fee
+	 * @param _cTokenContracts array containing all interfaces to the cToken contracts in which the user has debt positions
+	 * @param _amts array containing the amounts the user had borrowed originally from Compound plus the flash loan fee
+	 * @param _flashLoanFees flash loan fee (in percentage and scaled up to 10**2)
+	 */
+	function _borrowDebtPosition(
+		address[] memory cTokens_,
+		uint256[] memory borrowAmts_,
+		uint256[] memory flashLoanFees_
+	) internal {
+		uint256 length_ = cTokens_.length;
+		for (uint256 i; i < length_; ++i)
+			if (borrowAmts_[i] > 0)
+				morpho.borrow(cTokens_[i], add(borrowAmts_[i], flashLoanFees_[i]));
+	}
+}

contracts/mainnet/connectors/morpho/morpho-compound-import/interface.sol

@@ -0,0 +1,382 @@
+// SPDX-License-Identifier: MIT
+pragma solidity ^0.7.6;
+
+interface TokenInterface {
+	function balanceOf(address) external view returns (uint256);
+
+	function allowance(address, address) external view returns (uint256);
+
+	function approve(address, uint256) external;
+
+	function transfer(address, uint256) external returns (bool);
+
+	function transferFrom(
+		address,
+		address,
+		uint256
+	) external returns (bool);
+}
+
+interface CTokenInterface {
+	function underlying() external view returns (address);
+
+	function mint(uint256 mintAmount) external returns (uint256);
+
+	function redeem(uint256 redeemTokens) external returns (uint256);
+
+	function borrow(uint256 borrowAmount) external returns (uint256);
+
+	function repayBorrow(uint256 repayAmount) external returns (uint256);
+
+	function repayBorrowBehalf(address borrower, uint256 repayAmount)
+		external
+		returns (uint256); // For ERC20
+
+	function liquidateBorrow(
+		address borrower,
+		uint256 repayAmount,
+		address cTokenCollateral
+	) external returns (uint256);
+
+	function borrowBalanceCurrent(address account) external returns (uint256);
+
+	function redeemUnderlying(uint256 redeemAmount) external returns (uint256);
+
+	function exchangeRateCurrent() external returns (uint256);
+
+	function balanceOf(address owner) external view returns (uint256 balance);
+
+	function transferFrom(
+		address,
+		address,
+		uint256
+	) external returns (bool);
+
+	function allowance(address, address) external view returns (uint256);
+
+	function approve(address spender, uint256 amount) external returns (bool);
+}
+
+interface IMorphoLens {
+	function MAX_BASIS_POINTS() external view returns (uint256);
+
+	function WAD() external view returns (uint256);
+
+	function morpho() external view returns (IMorpho);
+
+	function comptroller() external view returns (IComptroller);
+
+	function getTotalSupply()
+		external
+		view
+		returns (
+			uint256 p2pSupplyAmount,
+			uint256 poolSupplyAmount,
+			uint256 totalSupplyAmount
+		);
+
+	function getTotalBorrow()
+		external
+		view
+		returns (
+			uint256 p2pBorrowAmount,
+			uint256 poolBorrowAmount,
+			uint256 totalBorrowAmount
+		);
+
+	function isMarketCreated(address _poolToken) external view returns (bool);
+
+	function isMarketCreatedAndNotPaused(address _poolToken)
+		external
+		view
+		returns (bool);
+
+	function isMarketCreatedAndNotPausedNorPartiallyPaused(address _poolToken)
+		external
+		view
+		returns (bool);
+
+	function getAllMarkets()
+		external
+		view
+		returns (address[] memory marketsCreated_);
+
+	function getMainMarketData(address _poolToken)
+		external
+		view
+		returns (
+			uint256 avgSupplyRatePerBlock,
+			uint256 avgBorrowRatePerBlock,
+			uint256 p2pSupplyAmount,
+			uint256 p2pBorrowAmount,
+			uint256 poolSupplyAmount,
+			uint256 poolBorrowAmount
+		);
+
+	function getTotalMarketSupply(address _poolToken)
+		external
+		view
+		returns (uint256 p2pSupplyAmount, uint256 poolSupplyAmount);
+
+	function getTotalMarketBorrow(address _poolToken)
+		external
+		view
+		returns (uint256 p2pBorrowAmount, uint256 poolBorrowAmount);
+
+	function getCurrentP2PSupplyIndex(address _poolToken)
+		external
+		view
+		returns (uint256);
+
+	function getCurrentP2PBorrowIndex(address _poolToken)
+		external
+		view
+		returns (uint256);
+
+	function getCurrentPoolIndexes(address _poolToken)
+		external
+		view
+		returns (
+			uint256 currentPoolSupplyIndex,
+			uint256 currentPoolBorrowIndex
+		);
+
+	function getIndexes(address _poolToken, bool _computeUpdatedIndexes)
+		external
+		view
+		returns (
+			uint256 p2pSupplyIndex,
+			uint256 p2pBorrowIndex,
+			uint256 poolSupplyIndex,
+			uint256 poolBorrowIndex
+		);
+
+	function getEnteredMarkets(address _user)
+		external
+		view
+		returns (address[] memory enteredMarkets);
+
+	function getUserMaxCapacitiesForAsset(address _user, address _poolToken)
+		external
+		view
+		returns (uint256 withdrawable, uint256 borrowable);
+
+	function getUserHypotheticalBalanceStates(
+		address _user,
+		address _poolToken,
+		uint256 _withdrawnAmount,
+		uint256 _borrowedAmount
+	) external view returns (uint256 debtValue, uint256 maxDebtValue);
+
+	function getUserLiquidityDataForAsset(
+		address _user,
+		address _poolToken,
+		bool _computeUpdatedIndexes,
+		ICompoundOracle _oracle
+	) external view returns (AssetLiquidityData memory assetData);
+
+	function computeLiquidationRepayAmount(
+		address _user,
+		address _poolTokenBorrowed,
+		address _poolTokenCollateral,
+		address[] calldata _updatedMarkets
+	) external view returns (uint256 toRepay);
+
+	function getAverageSupplyRatePerBlock(address _poolToken)
+		external
+		view
+		returns (uint256);
+
+	function getAverageBorrowRatePerBlock(address _poolToken)
+		external
+		view
+		returns (uint256);
+
+	function getNextUserSupplyRatePerBlock(
+		address _poolToken,
+		address _user,
+		uint256 _amount
+	)
+		external
+		view
+		returns (
+			uint256 nextSupplyRatePerBlock,
+			uint256 balanceOnPool,
+			uint256 balanceInP2P,
+			uint256 totalBalance
+		);
+
+	function getNextUserBorrowRatePerBlock(
+		address _poolToken,
+		address _user,
+		uint256 _amount
+	)
+		external
+		view
+		returns (
+			uint256 nextBorrowRatePerBlock,
+			uint256 balanceOnPool,
+			uint256 balanceInP2P,
+			uint256 totalBalance
+		);
+
+	function getMarketConfiguration(address _poolToken)
+		external
+		view
+		returns (
+			address underlying,
+			bool isCreated,
+			bool p2pDisabled,
+			bool isPaused,
+			bool isPartiallyPaused,
+			uint16 reserveFactor,
+			uint16 p2pIndexCursor,
+			uint256 collateralFactor
+		);
+
+	function getRatesPerBlock(address _poolToken)
+		external
+		view
+		returns (
+			uint256 p2pSupplyRate,
+			uint256 p2pBorrowRate,
+			uint256 poolSupplyRate,
+			uint256 poolBorrowRate
+		);
+
+	function getAdvancedMarketData(address _poolToken)
+		external
+		view
+		returns (
+			uint256 p2pSupplyIndex,
+			uint256 p2pBorrowIndex,
+			uint256 poolSupplyIndex,
+			uint256 poolBorrowIndex,
+			uint32 lastUpdateBlockNumber,
+			uint256 p2pSupplyDelta,
+			uint256 p2pBorrowDelta
+		);
+
+	function getCurrentSupplyBalanceInOf(address _poolToken, address _user)
+		external
+		view
+		returns (
+			uint256 balanceOnPool,
+			uint256 balanceInP2P,
+			uint256 totalBalance
+		);
+
+	function getCurrentBorrowBalanceInOf(address _poolToken, address _user)
+		external
+		view
+		returns (
+			uint256 balanceOnPool,
+			uint256 balanceInP2P,
+			uint256 totalBalance
+		);
+
+	function getUserBalanceStates(
+		address _user,
+		address[] calldata _updatedMarkets
+	)
+		external
+		view
+		returns (
+			uint256 collateralValue,
+			uint256 debtValue,
+			uint256 maxDebtValue
+		);
+
+	function getAccruedSupplierComp(
+		address _supplier,
+		address _poolToken,
+		uint256 _balance
+	) external view returns (uint256);
+
+	function getAccruedBorrowerComp(
+		address _borrower,
+		address _poolToken,
+		uint256 _balance
+	) external view returns (uint256);
+
+	function getCurrentCompSupplyIndex(address _poolToken)
+		external
+		view
+		returns (uint256);
+
+	function getCurrentCompBorrowIndex(address _poolToken)
+		external
+		view
+		returns (uint256);
+
+	function getUserUnclaimedRewards(
+		address[] calldata _poolTokens,
+		address _user
+	) external view returns (uint256 unclaimedRewards);
+
+	function isLiquidatable(address _user, address[] memory _updatedMarkets)
+		external
+		view
+		returns (bool);
+
+	function getCurrentUserSupplyRatePerBlock(address _poolToken, address _user)
+		external
+		view
+		returns (uint256);
+
+	function getCurrentUserBorrowRatePerBlock(address _poolToken, address _user)
+		external
+		view
+		returns (uint256);
+
+	function getUserHealthFactor(
+		address _user,
+		address[] calldata _updatedMarkets
+	) external view returns (uint256);
+}
+
+interface CETHInterface {
+	function mint() external payable;
+
+	function repayBorrow() external payable;
+
+	function repayBorrowBehalf(address borrower) external payable;
+
+	function liquidateBorrow(address borrower, address cTokenCollateral)
+		external
+		payable;
+}
+
+interface ComptrollerInterface {
+	function enterMarkets(address[] calldata cTokens)
+		external
+		returns (uint256[] memory);
+
+	function exitMarket(address cTokenAddress) external returns (uint256);
+
+	function getAssetsIn(address account)
+		external
+		view
+		returns (address[] memory);
+
+	function getAccountLiquidity(address account)
+		external
+		view
+		returns (
+			uint256,
+			uint256,
+			uint256
+		);
+}
+
+interface CompoundMappingInterface {
+	function cTokenMapping(string calldata tokenId)
+		external
+		view
+		returns (address);
+
+	function getMapping(string calldata tokenId)
+		external
+		view
+		returns (address, address);
+}

contracts/mainnet/connectors/morpho/morpho-compound-import/main.sol

@@ -0,0 +1,88 @@
+// SPDX-License-Identifier: MIT
+pragma solidity ^0.7.6;
+pragma experimental ABIEncoderV2;
+
+/**
+ * @title Morpho-Compound-Import.
+ * @dev Lending & Borrowing.
+ */
+
+import { TokenInterface, AccountInterface } from "../../../common/interfaces.sol";
+import { MorphoCompoundHelper } from "./helpers.sol";
+import { Events } from "./events.sol";
+
+contract MorphoCompoundImportResolver is MorphoCompoundHelper {
+	function _importMorphoCompound(
+        address userAccount_
+		ImportInputData memory importInputData_
+	) internal returns (string memory eventName_, bytes memory eventParam_) {
+		require(
+			AccountInterface(address(this)).isAuth(
+				userAccount_
+			),
+			"user-account-not-auth"
+		);
+
+		require(importInputData_.supplyCTokens.length > 0, "0-length-not-allowed");
+
+		ImportData memory data;
+
+		// get info about all borrowings and lendings by the user on Morpho-Compound
+		data = getBorrowAmounts(importInputData_, data);
+		data = getSupplyAmounts(importInputData_, data);
+
+		// pay back user's debt using flash loan funds
+		_paybackDebt(
+			importInputData_.userAccount,
+			data.borrowCtokens,
+			data.borrowAmts
+		);
+
+		// transfer user's tokens to DSA
+		_transferTokensToDsa(
+			importInputData_.userAccount,
+			data.supplyCtokens,
+			data.supplyAmts
+		);
+
+		// borrow the earlier position from Compound with flash loan fee added
+		_borrowDebtPosition(
+			data.borrowCtokens,
+			data.borrowAmts,
+			_flashLoanFees
+		);
+
+		_eventName = "LogCompoundImport(address,address[],address[],uint256[],uint256[])";
+		_eventParam = abi.encode(
+			importInputData_.userAccount,
+			importInputData_.supplyCTokens,
+			importInputData_.borrowCTokens,
+			data.supplyAmts,
+			data.borrowAmts
+		);
+	}
+
+	/**
+	 * @notice import Morpho-Compound position of the address passed in as userAccount
+	 * @dev Import EOA's morpho-compound position to DSA's morpho-compound position
+	 * @param userAccount The address of the EOA from which aave position will be imported
+	 * @param inputData The struct containing all the neccessary input data
+	 */
+	function importMorphoCompound(
+		address userAccount_,
+		ImportInputData memory inputData_
+	)
+		external
+		payable
+		returns (string memory eventName_, bytes memory eventParam_)
+	{
+		(_eventName, _eventParam) = _importMorphoCompound(
+			userAccount_,
+			inputData_
+		);
+	}
+}
+
+contract ConnectV2MorphoCompoundImport is MorphoCompoundImportResolver {
+	string public constant name = "Morpho-Compound-Import-v2";
+}

contracts/mainnet/connectors/morpho/morpho-compound/helpers.sol

@@ -2,9 +2,9 @@
 pragma solidity ^0.7.0;
 pragma experimental ABIEncoderV2;
 import "./interface.sol";
-import "../../common/stores.sol";
+import "../../../common/stores.sol";
-import "../../common/basic.sol";
+import "../../../common/basic.sol";
-import "../../common/interfaces.sol";
+import "../../../common/interfaces.sol";
 
 abstract contract Helpers is Stores, Basic {
 	IMorphoCore public constant MORPHO_COMPOUND =