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Latest 10 from a total of 10 transactions
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Set Fee Collecto... | 19790976 | 283 days ago | IN | 0 ETH | 0.00031914 | ||||
Withdraw | 19342325 | 346 days ago | IN | 0 ETH | 0.00586377 | ||||
Withdraw | 19342321 | 346 days ago | IN | 0 ETH | 0.00673587 | ||||
Transfer | 18615537 | 448 days ago | IN | 0.01 ETH | 0.00100617 | ||||
Transfer | 18615511 | 448 days ago | IN | 0.04 ETH | 0.00100511 | ||||
Transfer | 18558286 | 456 days ago | IN | 0.0005624 ETH | 0.00082819 | ||||
Set Swap Connect... | 18540276 | 459 days ago | IN | 0 ETH | 0.00134534 | ||||
Initialize | 17850479 | 555 days ago | IN | 0 ETH | 0.0004466 | ||||
Set Fee Collecto... | 17181935 | 649 days ago | IN | 0 ETH | 0.00313328 | ||||
Set Fee Collecto... | 17181930 | 649 days ago | IN | 0 ETH | 0.00378753 |
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Minimal Proxy Contract for 0x3e88c9b0e3be6817973a6e629211e702d12c577f
Contract Name:
SmartVault
Compiler Version
v0.8.3+commit.8d00100c
Optimization Enabled:
Yes with 10000 runs
Other Settings:
default evmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: GPL-3.0-or-later // This program is free software: you can redistribute it and/or modify // it under the terms of the GNU General Public License as published by // the Free Software Foundation, either version 3 of the License, or // (at your option) any later version. // This program is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // You should have received a copy of the GNU General Public License // along with this program. If not, see <http://www.gnu.org/licenses/>. pragma solidity ^0.8.0; import '@openzeppelin/contracts/token/ERC20/IERC20.sol'; import '@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol'; import '@openzeppelin/contracts/utils/Address.sol'; import '@openzeppelin/contracts/utils/math/Math.sol'; import '@mimic-fi/v2-bridge-connector/contracts/IBridgeConnector.sol'; import '@mimic-fi/v2-helpers/contracts/math/FixedPoint.sol'; import '@mimic-fi/v2-helpers/contracts/math/UncheckedMath.sol'; import '@mimic-fi/v2-helpers/contracts/utils/Denominations.sol'; import '@mimic-fi/v2-helpers/contracts/utils/IWrappedNativeToken.sol'; import '@mimic-fi/v2-price-oracle/contracts/oracle/IPriceOracle.sol'; import '@mimic-fi/v2-price-oracle/contracts/feeds/PriceFeedProvider.sol'; import '@mimic-fi/v2-strategies/contracts/IStrategy.sol'; import '@mimic-fi/v2-swap-connector/contracts/ISwapConnector.sol'; import '@mimic-fi/v2-registry/contracts/implementations/InitializableAuthorizedImplementation.sol'; import './ISmartVault.sol'; import './helpers/StrategyLib.sol'; import './helpers/SwapConnectorLib.sol'; import './helpers/BridgeConnectorLib.sol'; /** * @title Smart Vault * @dev Smart Vault contract where funds are being held offering a bunch of primitives to allow users model any * type of action to manage them, these are: collector, withdraw, swap, bridge, join, exit, bridge, wrap, and unwrap. * * It inherits from InitializableAuthorizedImplementation which means it's implementation can be cloned * from the Mimic Registry and should be initialized depending on each case. */ contract SmartVault is ISmartVault, PriceFeedProvider, InitializableAuthorizedImplementation { using SafeERC20 for IERC20; using FixedPoint for uint256; using UncheckedMath for uint256; using StrategyLib for address; using SwapConnectorLib for address; using BridgeConnectorLib for address; // Namespace under which the Smart Vault is registered in the Mimic Registry bytes32 public constant override NAMESPACE = keccak256('SMART_VAULT'); /** * @dev Fee configuration parameters * @param pct Percentage expressed using 16 decimals (1e18 = 100%) * @param cap Maximum amount of fees to be charged per period * @param token Address of the token to express the cap amount * @param period Period length in seconds * @param totalCharged Total amount of fees charged in the current period * @param nextResetTime Current cap period end date */ struct Fee { uint256 pct; uint256 cap; address token; uint256 period; uint256 totalCharged; uint256 nextResetTime; } // Price oracle reference address public override priceOracle; // Swap connector reference address public override swapConnector; // Bridge connector reference address public override bridgeConnector; // List of allowed strategies indexed by strategy address mapping (address => bool) public override isStrategyAllowed; // List of invested values indexed by strategy address mapping (address => uint256) public override investedValue; // Fee collector address where fees will be deposited address public override feeCollector; // Withdraw fee configuration Fee public override withdrawFee; // Performance fee configuration Fee public override performanceFee; // Swap fee configuration Fee public override swapFee; // Bridge fee configuration Fee public override bridgeFee; // Wrapped native token reference address public immutable override wrappedNativeToken; /** * @dev Creates a new Smart Vault implementation with references that should be shared among all implementations * @param _wrappedNativeToken Address of the wrapped native token to be used * @param _registry Address of the Mimic Registry to be referenced */ constructor(address _wrappedNativeToken, address _registry) InitializableAuthorizedImplementation(_registry) { wrappedNativeToken = _wrappedNativeToken; } /** * @dev Initializes the Smart Vault instance * @param admin Address that will be granted with admin rights */ function initialize(address admin) external initializer { _initialize(admin); } /** * @dev It allows receiving native token transfers */ receive() external payable { // solhint-disable-previous-line no-empty-blocks } /** * @dev Sets a new strategy as allowed or not for a Smart Vault. Sender must be authorized. * @param strategy Address of the strategy to be set * @param allowed Whether the strategy is allowed or not */ function setStrategy(address strategy, bool allowed) external override auth { _setStrategy(strategy, allowed); } /** * @dev Sets a new price oracle to a Smart Vault. Sender must be authorized. * @param newPriceOracle Address of the new price oracle to be set */ function setPriceOracle(address newPriceOracle) external override auth { _setPriceOracle(newPriceOracle); } /** * @dev Sets a new swap connector to a Smart Vault. Sender must be authorized. * @param newSwapConnector Address of the new swap connector to be set */ function setSwapConnector(address newSwapConnector) external override auth { _setSwapConnector(newSwapConnector); } /** * @dev Sets a new bridge connector to a Smart Vault. Sender must be authorized. * @param newBridgeConnector Address of the new bridge connector to be set */ function setBridgeConnector(address newBridgeConnector) external override auth { _setBridgeConnector(newBridgeConnector); } /** * @dev Sets a new fee collector. Sender must be authorized. * @param newFeeCollector Address of the new fee collector to be set */ function setFeeCollector(address newFeeCollector) external override auth { _setFeeCollector(newFeeCollector); } /** * @dev Sets a new withdraw fee. Sender must be authorized. * @param pct Withdraw fee percentage to be set * @param cap New maximum amount of withdraw fees to be charged per period * @param token Address of the token cap to be set * @param period New cap period length in seconds for the withdraw fee */ function setWithdrawFee(uint256 pct, uint256 cap, address token, uint256 period) external override auth { _setFeeConfiguration(withdrawFee, pct, cap, token, period); emit WithdrawFeeSet(pct, cap, token, period); } /** * @dev Sets a new performance fee. Sender must be authorized. * @param pct Performance fee percentage to be set * @param cap New maximum amount of performance fees to be charged per period * @param token Address of the token cap to be set * @param period New cap period length in seconds for the performance fee */ function setPerformanceFee(uint256 pct, uint256 cap, address token, uint256 period) external override auth { _setFeeConfiguration(performanceFee, pct, cap, token, period); emit PerformanceFeeSet(pct, cap, token, period); } /** * @dev Sets a new swap fee. Sender must be authorized. * @param pct New swap fee percentage to be set * @param cap New maximum amount of swap fees to be charged per period * @param token Address of the token cap to be set * @param period New cap period length in seconds for the swap fee */ function setSwapFee(uint256 pct, uint256 cap, address token, uint256 period) external override auth { _setFeeConfiguration(swapFee, pct, cap, token, period); emit SwapFeeSet(pct, cap, token, period); } /** * @dev Sets a new bridge fee. Sender must be authorized. * @param pct New bridge fee percentage to be set * @param cap New maximum amount of bridge fees to be charged per period * @param token Address of the token cap to be set * @param period New cap period length in seconds for the bridge fee */ function setBridgeFee(uint256 pct, uint256 cap, address token, uint256 period) external override auth { _setFeeConfiguration(bridgeFee, pct, cap, token, period); emit BridgeFeeSet(pct, cap, token, period); } /** * @dev Sets a of price feed * @param base Token base to be set * @param quote Token quote to be set * @param feed Price feed to be set */ function setPriceFeed(address base, address quote, address feed) public override(IPriceFeedProvider, PriceFeedProvider) auth { super.setPriceFeed(base, quote, feed); } /** * @dev Tells the price of a token (base) in a given quote * @param base Token to rate * @param quote Token used for the price rate */ function getPrice(address base, address quote) public view override returns (uint256) { return IPriceOracle(priceOracle).getPrice(address(this), base, quote); } /** * @dev Tells the last value accrued for a strategy. Note this value can be outdated. * @param strategy Address of the strategy querying the last value of */ function lastValue(address strategy) public view override returns (uint256) { return IStrategy(strategy).lastValue(address(this)); } /** * @dev Execute an arbitrary call from a Smart Vault. Sender must be authorized. * @param target Address where the call will be sent * @param data Calldata to be used for the call * @param value Value in wei that will be attached to the call * @return result Call response if it was successful, otherwise it reverts */ function call(address target, bytes memory callData, uint256 value, bytes memory data) external override auth returns (bytes memory result) { result = Address.functionCallWithValue(target, callData, value, 'SMART_VAULT_ARBITRARY_CALL_FAIL'); emit Call(target, callData, value, result, data); } /** * @dev Collect tokens from an external account to a Smart Vault. Sender must be authorized. * @param token Address of the token to be collected * @param from Address where the tokens will be transfer from * @param amount Amount of tokens to be transferred * @param data Extra data only logged * @return collected Amount of tokens collected */ function collect(address token, address from, uint256 amount, bytes memory data) external override auth returns (uint256 collected) { require(amount > 0, 'COLLECT_AMOUNT_ZERO'); uint256 previousBalance = IERC20(token).balanceOf(address(this)); IERC20(token).safeTransferFrom(from, address(this), amount); uint256 currentBalance = IERC20(token).balanceOf(address(this)); collected = currentBalance - previousBalance; emit Collect(token, from, collected, data); } /** * @dev Withdraw tokens to an external account. Sender must be authorized. * @param token Address of the token to be withdrawn * @param amount Amount of tokens to withdraw * @param recipient Address where the tokens will be transferred to * @param data Extra data only logged * @return withdrawn Amount of tokens transferred to the recipient address */ function withdraw(address token, uint256 amount, address recipient, bytes memory data) external override auth returns (uint256 withdrawn) { require(amount > 0, 'WITHDRAW_AMOUNT_ZERO'); require(recipient != address(0), 'RECIPIENT_ZERO'); uint256 withdrawFeeAmount = recipient == feeCollector ? 0 : _payFee(token, amount, withdrawFee); withdrawn = amount - withdrawFeeAmount; _safeTransfer(token, recipient, withdrawn); emit Withdraw(token, recipient, withdrawn, withdrawFeeAmount, data); } /** * @dev Wrap an amount of native tokens to the wrapped ERC20 version of it. Sender must be authorized. * @param amount Amount of native tokens to be wrapped * @param data Extra data only logged * @return wrapped Amount of tokens wrapped */ function wrap(uint256 amount, bytes memory data) external override auth returns (uint256 wrapped) { require(amount > 0, 'WRAP_AMOUNT_ZERO'); require(address(this).balance >= amount, 'WRAP_INSUFFICIENT_AMOUNT'); IWrappedNativeToken wrappedToken = IWrappedNativeToken(wrappedNativeToken); uint256 previousBalance = wrappedToken.balanceOf(address(this)); wrappedToken.deposit{ value: amount }(); uint256 currentBalance = wrappedToken.balanceOf(address(this)); wrapped = currentBalance - previousBalance; emit Wrap(amount, wrapped, data); } /** * @dev Unwrap an amount of wrapped native tokens. Sender must be authorized. * @param amount Amount of wrapped native tokens to unwrapped * @param data Extra data only logged * @return unwrapped Amount of tokens unwrapped */ function unwrap(uint256 amount, bytes memory data) external override auth returns (uint256 unwrapped) { require(amount > 0, 'UNWRAP_AMOUNT_ZERO'); uint256 previousBalance = address(this).balance; IWrappedNativeToken(wrappedNativeToken).withdraw(amount); uint256 currentBalance = address(this).balance; unwrapped = currentBalance - previousBalance; emit Unwrap(amount, unwrapped, data); } /** * @dev Claim strategy rewards. Sender must be authorized. * @param strategy Address of the strategy to claim rewards * @param data Extra data passed to the strategy and logged * @return tokens Addresses of the tokens received as rewards * @return amounts Amounts of the tokens received as rewards */ function claim(address strategy, bytes memory data) external override auth returns (address[] memory tokens, uint256[] memory amounts) { require(isStrategyAllowed[strategy], 'STRATEGY_NOT_ALLOWED'); (tokens, amounts) = strategy.claim(data); emit Claim(strategy, tokens, amounts, data); } /** * @dev Join a strategy with an amount of tokens. Sender must be authorized. * @param strategy Address of the strategy to join * @param tokensIn List of token addresses to join with * @param amountsIn List of token amounts to join with * @param slippage Slippage that will be used to compute the join * @param data Extra data passed to the strategy and logged * @return tokensOut List of token addresses received after the join * @return amountsOut List of token amounts received after the join */ function join( address strategy, address[] memory tokensIn, uint256[] memory amountsIn, uint256 slippage, bytes memory data ) external override auth returns (address[] memory tokensOut, uint256[] memory amountsOut) { require(isStrategyAllowed[strategy], 'STRATEGY_NOT_ALLOWED'); require(slippage <= FixedPoint.ONE, 'JOIN_SLIPPAGE_ABOVE_ONE'); require(tokensIn.length == amountsIn.length, 'JOIN_INPUT_INVALID_LENGTH'); uint256 value; (tokensOut, amountsOut, value) = strategy.join(tokensIn, amountsIn, slippage, data); require(tokensOut.length == amountsOut.length, 'JOIN_OUTPUT_INVALID_LENGTH'); investedValue[strategy] = investedValue[strategy] + value; emit Join(strategy, tokensIn, amountsIn, tokensOut, amountsOut, value, slippage, data); } /** * @dev Exit a strategy. Sender must be authorized. * @param strategy Address of the strategy to exit * @param tokensIn List of token addresses to exit with * @param amountsIn List of token amounts to exit with * @param slippage Slippage that will be used to compute the exit * @param data Extra data passed to the strategy and logged * @return tokensOut List of token addresses received after the exit * @return amountsOut List of token amounts received after the exit */ function exit( address strategy, address[] memory tokensIn, uint256[] memory amountsIn, uint256 slippage, bytes memory data ) external override auth returns (address[] memory tokensOut, uint256[] memory amountsOut) { require(isStrategyAllowed[strategy], 'STRATEGY_NOT_ALLOWED'); require(investedValue[strategy] > 0, 'EXIT_NO_INVESTED_VALUE'); require(slippage <= FixedPoint.ONE, 'EXIT_SLIPPAGE_ABOVE_ONE'); require(tokensIn.length == amountsIn.length, 'EXIT_INPUT_INVALID_LENGTH'); uint256 value; (tokensOut, amountsOut, value) = strategy.exit(tokensIn, amountsIn, slippage, data); require(tokensOut.length == amountsOut.length, 'EXIT_OUTPUT_INVALID_LENGTH'); uint256[] memory performanceFeeAmounts = new uint256[](amountsOut.length); // It can rely on the last updated value since we have just exited, no need to compute current value uint256 valueBeforeExit = lastValue(strategy) + value; if (valueBeforeExit <= investedValue[strategy]) { // There were losses, invested value is simply reduced using the exited ratio compared to the value // before exit. Invested value is round up to avoid interpreting losses due to rounding errors investedValue[strategy] -= investedValue[strategy].mulUp(value).divUp(valueBeforeExit); } else { // If value gains are greater than the exit value, it means only gains are being withdrawn. In that case // the taxable amount is the entire exited amount, otherwise it should be the equivalent gains ratio of it. uint256 valueGains = valueBeforeExit.uncheckedSub(investedValue[strategy]); bool onlyGains = valueGains >= value; // If the exit value is greater than the value gains, the invested value should be reduced by the portion // of the invested value being exited. Otherwise, it's still the same, only gains are being withdrawn. // No need for checked math as we are checking it manually beforehand uint256 decrement = onlyGains ? 0 : value.uncheckedSub(valueGains); investedValue[strategy] = investedValue[strategy] - decrement; // Compute performance fees per token out for (uint256 i = 0; i < tokensOut.length; i = i.uncheckedAdd(1)) { address token = tokensOut[i]; uint256 amount = amountsOut[i]; uint256 taxableAmount = onlyGains ? amount : ((amount * valueGains) / value); uint256 feeAmount = _payFee(token, taxableAmount, performanceFee); amountsOut[i] = amount - feeAmount; performanceFeeAmounts[i] = feeAmount; } } emit Exit(strategy, tokensIn, amountsIn, tokensOut, amountsOut, value, performanceFeeAmounts, slippage, data); } /** * @dev Swaps two tokens. Sender must be authorized. * @param source Source to request the swap: Uniswap V2, Uniswap V3, Balancer V2, or Paraswap V5. * @param tokenIn Token being sent * @param tokenOut Token being received * @param amountIn Amount of tokenIn being swapped * @param limitType Swap limit to be applied: slippage or min amount out * @param limitAmount Amount of the swap limit to be applied depending on limitType * @param data Encoded data to specify different swap parameters depending on the source picked * @return amountOut Received amount of tokens out */ function swap( uint8 source, address tokenIn, address tokenOut, uint256 amountIn, SwapLimit limitType, uint256 limitAmount, bytes memory data ) external override auth returns (uint256 amountOut) { require(tokenIn != tokenOut, 'SWAP_SAME_TOKEN'); require(swapConnector != address(0), 'SWAP_CONNECTOR_NOT_SET'); uint256 minAmountOut; if (limitType == SwapLimit.MinAmountOut) { minAmountOut = limitAmount; } else if (limitType == SwapLimit.Slippage) { require(limitAmount <= FixedPoint.ONE, 'SWAP_SLIPPAGE_ABOVE_ONE'); uint256 price = getPrice(tokenIn, tokenOut); // No need for checked math as we are checking it manually beforehand // Always round up the expected min amount out. Limit amount is slippage. minAmountOut = amountIn.mulUp(price).mulUp(FixedPoint.ONE.uncheckedSub(limitAmount)); } else { revert('SWAP_INVALID_LIMIT_TYPE'); } uint256 preBalanceIn = IERC20(tokenIn).balanceOf(address(this)); uint256 preBalanceOut = IERC20(tokenOut).balanceOf(address(this)); swapConnector.swap(source, tokenIn, tokenOut, amountIn, minAmountOut, data); uint256 postBalanceIn = IERC20(tokenIn).balanceOf(address(this)); require(postBalanceIn >= preBalanceIn - amountIn, 'SWAP_BAD_TOKEN_IN_BALANCE'); uint256 amountOutBeforeFees = IERC20(tokenOut).balanceOf(address(this)) - preBalanceOut; require(amountOutBeforeFees >= minAmountOut, 'SWAP_MIN_AMOUNT'); uint256 swapFeeAmount = _payFee(tokenOut, amountOutBeforeFees, swapFee); amountOut = amountOutBeforeFees - swapFeeAmount; emit Swap(source, tokenIn, tokenOut, amountIn, amountOut, minAmountOut, swapFeeAmount, data); } /** * @dev Bridge assets to another chain * @param source Source to request the bridge. It depends on the Bridge Connector attached to a Smart Vault. * @param chainId ID of the destination chain * @param token Address of the token to be bridged * @param amount Amount of tokens to be bridged * @param limitType Bridge limit to be applied: slippage or min amount out * @param limitAmount Amount of the swap limit to be applied depending on limitType * @param recipient Address that will receive the tokens on the destination chain * @param data Encoded data to specify different bridge parameters depending on the source picked * @return bridged Amount requested to be bridged after fees */ function bridge( uint8 source, uint256 chainId, address token, uint256 amount, BridgeLimit limitType, uint256 limitAmount, address recipient, bytes memory data ) external override auth returns (uint256 bridged) { require(block.chainid != chainId, 'BRIDGE_SAME_CHAIN'); require(recipient != address(0), 'BRIDGE_RECIPIENT_ZERO'); require(bridgeConnector != address(0), 'BRIDGE_CONNECTOR_NOT_SET'); uint256 bridgeFeeAmount = _payFee(token, amount, bridgeFee); bridged = amount - bridgeFeeAmount; uint256 minAmountOut; if (limitType == BridgeLimit.MinAmountOut) { minAmountOut = limitAmount; } else if (limitType == BridgeLimit.Slippage) { require(limitAmount <= FixedPoint.ONE, 'BRIDGE_SLIPPAGE_ABOVE_ONE'); // No need for checked math as we are checking it manually beforehand // Always round up the expected min amount out. Limit amount is slippage. minAmountOut = bridged.mulUp(FixedPoint.ONE.uncheckedSub(limitAmount)); } else { revert('BRIDGE_INVALID_LIMIT_TYPE'); } uint256 preBalanceIn = IERC20(token).balanceOf(address(this)); bridgeConnector.bridge(source, chainId, token, bridged, minAmountOut, recipient, data); uint256 postBalanceIn = IERC20(token).balanceOf(address(this)); require(postBalanceIn >= preBalanceIn - bridged, 'BRIDGE_BAD_TOKEN_IN_BALANCE'); emit Bridge(source, chainId, token, bridged, minAmountOut, bridgeFeeAmount, recipient, data); } /** * @dev Internal function to pay the amount of fees to be charged based on a fee configuration to the fee collector * @param token Token being charged * @param amount Token amount to be taxed with fees * @param fee Fee configuration to be applied * @return paidAmount Amount of fees paid to the fee collector */ function _payFee(address token, uint256 amount, Fee storage fee) internal returns (uint256 paidAmount) { // Fee amounts are always rounded down uint256 feeAmount = amount.mulDown(fee.pct); // If cap amount or cap period are not set, charge the entire amount if (fee.token == address(0) || fee.cap == 0 || fee.period == 0) { _safeTransfer(token, feeCollector, feeAmount); return feeAmount; } // Reset cap totalizator if necessary if (block.timestamp >= fee.nextResetTime) { fee.totalCharged = 0; fee.nextResetTime = block.timestamp + fee.period; } // Calc fee amount in the fee token used for the cap uint256 feeTokenPrice = getPrice(token, fee.token); uint256 feeAmountInFeeToken = feeAmount.mulDown(feeTokenPrice); // Compute fee amount picking the minimum between the chargeable amount and the remaining part for the cap if (fee.totalCharged + feeAmountInFeeToken <= fee.cap) { paidAmount = feeAmount; fee.totalCharged += feeAmountInFeeToken; } else if (fee.totalCharged < fee.cap) { paidAmount = (fee.cap.uncheckedSub(fee.totalCharged) * feeAmount) / feeAmountInFeeToken; fee.totalCharged = fee.cap; } else { // This case is when the total charged amount is already greater than the cap amount. It could happen if // the cap amounts is decreased or if the cap token is changed. In this case the total charged amount is // not updated, and the amount to paid is zero. paidAmount = 0; } // Pay fee amount to the fee collector _safeTransfer(token, feeCollector, paidAmount); } /** * @dev Internal method to transfer ERC20 or native tokens from a Smart Vault * @param token Address of the ERC20 token to transfer * @param to Address transferring the tokens to * @param amount Amount of tokens to transfer */ function _safeTransfer(address token, address to, uint256 amount) internal { if (amount == 0) return; if (Denominations.isNativeToken(token)) Address.sendValue(payable(to), amount); else IERC20(token).safeTransfer(to, amount); } /** * @dev Sets a new strategy as allowed or not * @param strategy Address of the strategy to be set * @param allowed Whether the strategy is allowed or not */ function _setStrategy(address strategy, bool allowed) internal { if (allowed) _validateStatelessDependency(strategy); isStrategyAllowed[strategy] = allowed; emit StrategySet(strategy, allowed); } /** * @dev Sets a new price oracle * @param newPriceOracle New price oracle to be set */ function _setPriceOracle(address newPriceOracle) internal { _validateStatelessDependency(newPriceOracle); priceOracle = newPriceOracle; emit PriceOracleSet(newPriceOracle); } /** * @dev Sets a new swap connector * @param newSwapConnector New swap connector to be set */ function _setSwapConnector(address newSwapConnector) internal { _validateStatelessDependency(newSwapConnector); swapConnector = newSwapConnector; emit SwapConnectorSet(newSwapConnector); } /** * @dev Sets a new bridge connector * @param newBridgeConnector New bridge connector to be set */ function _setBridgeConnector(address newBridgeConnector) internal { _validateStatelessDependency(newBridgeConnector); bridgeConnector = newBridgeConnector; emit BridgeConnectorSet(newBridgeConnector); } /** * @dev Internal method to set the fee collector * @param newFeeCollector New fee collector to be set */ function _setFeeCollector(address newFeeCollector) internal { require(newFeeCollector != address(0), 'FEE_COLLECTOR_ZERO'); feeCollector = newFeeCollector; emit FeeCollectorSet(newFeeCollector); } /** * @dev Internal method to set a new fee cap configuration * @param fee Fee configuration to be updated * @param pct Fee percentage to be set * @param cap New maximum amount of fees to be charged per period * @param token Address of the token cap to be set * @param period New cap period length in seconds */ function _setFeeConfiguration(Fee storage fee, uint256 pct, uint256 cap, address token, uint256 period) internal { require(pct <= FixedPoint.ONE, 'FEE_PCT_ABOVE_ONE'); // If there is no fee percentage, there must not be a fee cap bool isZeroCap = token == address(0) && cap == 0 && period == 0; require(pct != 0 || isZeroCap, 'INVALID_CAP_WITH_FEE_ZERO'); // If there is a cap, all values must be non-zero bool isNonZeroCap = token != address(0) && cap != 0 && period != 0; require(isZeroCap || isNonZeroCap, 'INCONSISTENT_CAP_VALUES'); // Changing the fee percentage does not affect the totalizator at all, it only affects future fee charges fee.pct = pct; // Changing the fee cap amount does not affect the totalizator, it only applies when changing the for the total // charged amount. Note that it can happen that the cap amount is lower than the total charged amount if the // cap amount is lowered. However, there shouldn't be any accounting issues with that. fee.cap = cap; // Changing the cap period only affects the end time of the next period, but not the end date of the current one fee.period = period; // Therefore, only clean the totalizators if the cap is being removed if (isZeroCap) { fee.totalCharged = 0; fee.nextResetTime = 0; } else { // If cap values are not zero, set the next reset time if it wasn't set already // Otherwise, if the cap token is being changed the total charged amount must be updated accordingly if (fee.nextResetTime == 0) { fee.nextResetTime = block.timestamp + period; } else if (fee.token != token) { uint256 newTokenPrice = getPrice(fee.token, token); fee.totalCharged = fee.totalCharged.mulDown(newTokenPrice); } } // Finally simply set the new requested token fee.token = token; } }
// SPDX-License-Identifier: GPL-3.0-or-later // This program is free software: you can redistribute it and/or modify // it under the terms of the GNU General Public License as published by // the Free Software Foundation, either version 3 of the License, or // (at your option) any later version. // This program is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // You should have received a copy of the GNU General Public License // along with this program. If not, see <http://www.gnu.org/licenses/>. pragma solidity >=0.8.0; import '@mimic-fi/v2-registry/contracts/implementations/IImplementation.sol'; /** * @title IBridgeConnector * @dev Bridge Connector interface to bridge tokens between different chains. It must follow IImplementation interface. */ interface IBridgeConnector is IImplementation { /** * @dev Enum identifying the sources proposed: Hop only for now. */ enum Source { Hop } /** * @dev Bridge assets to a different chain * @param source Source to execute the requested bridge op * @param chainId ID of the destination chain * @param token Address of the token to be bridged * @param amountIn Amount of tokens to be bridged * @param minAmountOut Minimum amount of tokens willing to receive on the destination chain * @param recipient Address that will receive the tokens on the destination chain * @param data ABI encoded data that will depend on the requested source */ function bridge( uint8 source, uint256 chainId, address token, uint256 amountIn, uint256 minAmountOut, address recipient, bytes memory data ) external; }
// SPDX-License-Identifier: GPL-3.0-or-later // This program is free software: you can redistribute it and/or modify // it under the terms of the GNU General Public License as published by // the Free Software Foundation, either version 3 of the License, or // (at your option) any later version. // This program is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // You should have received a copy of the GNU General Public License // along with this program. If not, see <http://www.gnu.org/licenses/>. pragma solidity ^0.8.0; import './IAuthorizer.sol'; /** * @title Authorizer * @dev Authorization module to be used by contracts that need to implement permissions for their methods. * It provides a permissions model to list who is allowed to call what function in a contract. And only accounts * authorized to manage those permissions are the ones that are allowed to authorize or unauthorize accounts. */ contract Authorizer is IAuthorizer { // Constant used to denote that a permission is open to anyone address public constant ANY_ADDRESS = address(0xFFfFfFffFFfffFFfFFfFFFFFffFFFffffFfFFFfF); // Internal mapping to tell who is allowed to do what indexed by (account, function selector) mapping (address => mapping (bytes4 => bool)) private authorized; /** * @dev Modifier that should be used to tag protected functions */ modifier auth() { _authenticate(msg.sender, msg.sig); _; } /** * @dev Tells whether someone is allowed to call a function or not. It returns true if it's allowed to anyone. * @param who Address asking permission for * @param what Function selector asking permission for */ function isAuthorized(address who, bytes4 what) public view override returns (bool) { return authorized[ANY_ADDRESS][what] || authorized[who][what]; } /** * @dev Authorizes someone to call a function. Sender must be authorize to do so. * @param who Address to be authorized * @param what Function selector to be granted */ function authorize(address who, bytes4 what) external override auth { _authorize(who, what); } /** * @dev Unauthorizes someone to call a function. Sender must be authorize to do so. * @param who Address to be unauthorized * @param what Function selector to be revoked */ function unauthorize(address who, bytes4 what) external override auth { _unauthorize(who, what); } /** * @dev Internal function to authenticate someone over a function. * It reverts if the given account is not authorized to call the requested function. * @param who Address to be authenticated * @param what Function selector to be authenticated */ function _authenticate(address who, bytes4 what) internal view { require(isAuthorized(who, what), 'AUTH_SENDER_NOT_ALLOWED'); } /** * @dev Internal function to authorize someone to call a function * @param who Address to be authorized * @param what Function selector to be granted */ function _authorize(address who, bytes4 what) internal { authorized[who][what] = true; emit Authorized(who, what); } /** * @dev Internal function to unauthorize someone to call a function * @param who Address to be unauthorized * @param what Function selector to be revoked */ function _unauthorize(address who, bytes4 what) internal { authorized[who][what] = false; emit Unauthorized(who, what); } }
// SPDX-License-Identifier: GPL-3.0-or-later // This program is free software: you can redistribute it and/or modify // it under the terms of the GNU General Public License as published by // the Free Software Foundation, either version 3 of the License, or // (at your option) any later version. // This program is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // You should have received a copy of the GNU General Public License // along with this program. If not, see <http://www.gnu.org/licenses/>. pragma solidity >=0.8.0; /** * @title IAuthorizer */ interface IAuthorizer { /** * @dev Emitted when an account is authorized to call a function */ event Authorized(address indexed who, bytes4 what); /** * @dev Emitted when an account is unauthorized to call a function */ event Unauthorized(address indexed who, bytes4 what); /** * @dev Authorizes someone to call a function. Sender must be authorize to do so. * @param who Address to be authorized * @param what Function selector to be granted */ function authorize(address who, bytes4 what) external; /** * @dev Unauthorizes someone to call a function. Sender must be authorize to do so. * @param who Address to be unauthorized * @param what Function selector to be revoked */ function unauthorize(address who, bytes4 what) external; /** * @dev Tells whether someone is allowed to call a function or not. It returns true if it's allowed to anyone. * @param who Address asking permission for * @param what Function selector asking permission for */ function isAuthorized(address who, bytes4 what) external view returns (bool); }
// SPDX-License-Identifier: GPL-3.0-or-later // This program is free software: you can redistribute it and/or modify // it under the terms of the GNU General Public License as published by // the Free Software Foundation, either version 3 of the License, or // (at your option) any later version. // This program is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // You should have received a copy of the GNU General Public License // along with this program. If not, see <http://www.gnu.org/licenses/>. pragma solidity ^0.8.0; /** * @title FixedPoint * @dev Math library to operate with fixed point values with 18 decimals */ library FixedPoint { // 1 in fixed point value: 18 decimal places uint256 internal constant ONE = 1e18; /** * @dev Multiplies two fixed point numbers rounding down */ function mulDown(uint256 a, uint256 b) internal pure returns (uint256) { unchecked { uint256 product = a * b; require(a == 0 || product / a == b, 'MUL_OVERFLOW'); return product / ONE; } } /** * @dev Multiplies two fixed point numbers rounding up */ function mulUp(uint256 a, uint256 b) internal pure returns (uint256) { unchecked { uint256 product = a * b; require(a == 0 || product / a == b, 'MUL_OVERFLOW'); return product == 0 ? 0 : (((product - 1) / ONE) + 1); } } /** * @dev Divides two fixed point numbers rounding down */ function divDown(uint256 a, uint256 b) internal pure returns (uint256) { unchecked { require(b != 0, 'ZERO_DIVISION'); if (a == 0) return 0; uint256 aInflated = a * ONE; require(aInflated / a == ONE, 'DIV_INTERNAL'); return aInflated / b; } } /** * @dev Divides two fixed point numbers rounding up */ function divUp(uint256 a, uint256 b) internal pure returns (uint256) { unchecked { require(b != 0, 'ZERO_DIVISION'); if (a == 0) return 0; uint256 aInflated = a * ONE; require(aInflated / a == ONE, 'DIV_INTERNAL'); return ((aInflated - 1) / b) + 1; } } }
// SPDX-License-Identifier: GPL-3.0-or-later // This program is free software: you can redistribute it and/or modify // it under the terms of the GNU General Public License as published by // the Free Software Foundation, either version 3 of the License, or // (at your option) any later version. // This program is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // You should have received a copy of the GNU General Public License // along with this program. If not, see <http://www.gnu.org/licenses/>. pragma solidity ^0.8.0; /** * @title UncheckedMath * @dev Math library to perform unchecked operations */ library UncheckedMath { /** * @dev Unsafely adds two unsigned integers */ function uncheckedAdd(uint256 a, uint256 b) internal pure returns (uint256) { unchecked { return a + b; } } /** * @dev Unsafely subtracts two unsigned integers */ function uncheckedSub(uint256 a, uint256 b) internal pure returns (uint256) { unchecked { return a - b; } } /** * @dev Unsafely multiplies two unsigned integers */ function uncheckedMul(uint256 a, uint256 b) internal pure returns (uint256) { unchecked { return a * b; } } /** * @dev Unsafely multiplies two signed integers */ function uncheckedMul(int256 a, int256 b) internal pure returns (int256) { unchecked { return a * b; } } /** * @dev Unsafely divides two unsigned integers */ function uncheckedDiv(uint256 a, uint256 b) internal pure returns (uint256) { unchecked { return a / b; } } }
// SPDX-License-Identifier: GPL-3.0-or-later // This program is free software: you can redistribute it and/or modify // it under the terms of the GNU General Public License as published by // the Free Software Foundation, either version 3 of the License, or // (at your option) any later version. // This program is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // You should have received a copy of the GNU General Public License // along with this program. If not, see <http://www.gnu.org/licenses/>. pragma solidity ^0.8.0; /** * @title Denominations * @dev Provides a list of ground denominations for those tokens that cannot be represented by an ERC20. * For now, the only needed is the native token that could be ETH, MATIC, or other depending on the layer being operated. */ library Denominations { address internal constant NATIVE_TOKEN = 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE; function isNativeToken(address token) internal pure returns (bool) { return token == NATIVE_TOKEN; } }
// SPDX-License-Identifier: GPL-3.0-or-later // This program is free software: you can redistribute it and/or modify // it under the terms of the GNU General Public License as published by // the Free Software Foundation, either version 3 of the License, or // (at your option) any later version. // This program is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // You should have received a copy of the GNU General Public License // along with this program. If not, see <http://www.gnu.org/licenses/>. pragma solidity ^0.8.0; import '@openzeppelin/contracts/token/ERC20/IERC20.sol'; /** * @title IWrappedNativeToken */ interface IWrappedNativeToken is IERC20 { /** * @dev Wraps msg.value into the wrapped-native token */ function deposit() external payable; /** * @dev Unwraps requested amount to the native token */ function withdraw(uint256 amount) external; }
// SPDX-License-Identifier: GPL-3.0-or-later // This program is free software: you can redistribute it and/or modify // it under the terms of the GNU General Public License as published by // the Free Software Foundation, either version 3 of the License, or // (at your option) any later version. // This program is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // You should have received a copy of the GNU General Public License // along with this program. If not, see <http://www.gnu.org/licenses/>. pragma solidity >=0.8.0; /** * @title IPriceFeedProvider * @dev Contract providing price feed references for (base, quote) token pairs */ interface IPriceFeedProvider { /** * @dev Emitted every time a price feed is set for (base, quote) pair */ event PriceFeedSet(address indexed base, address indexed quote, address feed); /** * @dev Tells the price feed address for (base, quote) pair. It returns the zero address if there is no one set. * @param base Token to be rated * @param quote Token used for the price rate */ function getPriceFeed(address base, address quote) external view returns (address); /** * @dev Sets a of price feed * @param base Token base to be set * @param quote Token quote to be set * @param feed Price feed to be set */ function setPriceFeed(address base, address quote, address feed) external; /** * @dev Sets a list of price feeds * @param bases List of token bases to be set * @param quotes List of token quotes to be set * @param feeds List of price feeds to be set */ function setPriceFeeds(address[] memory bases, address[] memory quotes, address[] memory feeds) external; }
// SPDX-License-Identifier: GPL-3.0-or-later // This program is free software: you can redistribute it and/or modify // it under the terms of the GNU General Public License as published by // the Free Software Foundation, either version 3 of the License, or // (at your option) any later version. // This program is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // You should have received a copy of the GNU General Public License // along with this program. If not, see <http://www.gnu.org/licenses/>. pragma solidity ^0.8.0; import '@mimic-fi/v2-helpers/contracts/math/UncheckedMath.sol'; import './IPriceFeedProvider.sol'; /** * @title IPriceFeedProvider * @dev Contract providing price feed references for (base, quote) token pairs */ contract PriceFeedProvider is IPriceFeedProvider { using UncheckedMath for uint256; // Mapping of price feeds from "token A" to "token B" mapping (address => mapping (address => address)) private _priceFeeds; /** * @dev Tells the price feed address for (base, quote) pair. It returns the zero address if there is no one set. * @param base Token to be rated * @param quote Token used for the price rate */ function getPriceFeed(address base, address quote) external view override returns (address) { return _priceFeeds[base][quote]; } /** * @dev Sets a of price feed * @param base Token base to be set * @param quote Token quote to be set * @param feed Price feed to be set */ function setPriceFeed(address base, address quote, address feed) public virtual override { _priceFeeds[base][quote] = feed; emit PriceFeedSet(base, quote, feed); } /** * @dev Sets a list of price feeds. Sender must be authorized. * @param bases List of token bases to be set * @param quotes List of token quotes to be set * @param feeds List of price feeds to be set */ function setPriceFeeds(address[] memory bases, address[] memory quotes, address[] memory feeds) public virtual override { require(bases.length == quotes.length, 'SET_FEEDS_INVALID_QUOTES_LENGTH'); require(bases.length == feeds.length, 'SET_FEEDS_INVALID_FEEDS_LENGTH'); for (uint256 i = 0; i < bases.length; i = i.uncheckedAdd(1)) setPriceFeed(bases[i], quotes[i], feeds[i]); } }
// SPDX-License-Identifier: GPL-3.0-or-later // This program is free software: you can redistribute it and/or modify // it under the terms of the GNU General Public License as published by // the Free Software Foundation, either version 3 of the License, or // (at your option) any later version. // This program is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // You should have received a copy of the GNU General Public License // along with this program. If not, see <http://www.gnu.org/licenses/>. pragma solidity >=0.8.0; import '@mimic-fi/v2-registry/contracts/implementations/IImplementation.sol'; /** * @title IPriceOracle * @dev Oracle that interfaces with external feeds to provide quotes for tokens based on any other token. * It must support also `IImplementation`. */ interface IPriceOracle is IImplementation { /** * @dev Tells the price of a token (base) in a given quote. The response is expressed using the corresponding * number of decimals so that when performing a fixed point product of it by a `base` amount it results in * a value expressed in `quote` decimals. For example, if `base` is ETH and `quote` is USDC, then the returned * value is expected to be expressed using 6 decimals: * * FixedPoint.mul(X[ETH], price[USDC/ETH]) = FixedPoint.mul(X[18], price[6]) = X * price [6] * * @param provider Contract providing the price feeds to use by the oracle * @param base Token to rate * @param quote Token used for the price rate */ function getPrice(address provider, address base, address quote) external view returns (uint256); }
// SPDX-License-Identifier: GPL-3.0-or-later // This program is free software: you can redistribute it and/or modify // it under the terms of the GNU General Public License as published by // the Free Software Foundation, either version 3 of the License, or // (at your option) any later version. // This program is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // You should have received a copy of the GNU General Public License // along with this program. If not, see <http://www.gnu.org/licenses/>. pragma solidity ^0.8.0; import '@openzeppelin/contracts/proxy/utils/Initializable.sol'; import './IImplementation.sol'; import '../registry/IRegistry.sol'; /** * @title BaseImplementation * @dev This implementation contract comes with an immutable reference to an implementations registry where it should * be registered as well (checked during initialization). It allows requesting new instances of other registered * implementations to as another safety check to make sure valid instances are referenced in case it's needed. */ abstract contract BaseImplementation is IImplementation { // Immutable implementations registry reference address public immutable override registry; /** * @dev Creates a new BaseImplementation * @param _registry Address of the Mimic Registry where dependencies will be validated against */ constructor(address _registry) { registry = _registry; } /** * @dev Internal function to validate a new dependency that must be registered as stateless. * It checks the new dependency is registered, not deprecated, and stateless. * @param dependency New stateless dependency to be set */ function _validateStatelessDependency(address dependency) internal view { require(_validateDependency(dependency), 'DEPENDENCY_NOT_STATELESS'); } /** * @dev Internal function to validate a new dependency that cannot be registered as stateless. * It checks the new dependency is registered, not deprecated, and not stateful. * @param dependency New stateful dependency to be set */ function _validateStatefulDependency(address dependency) internal view { require(!_validateDependency(dependency), 'DEPENDENCY_NOT_STATEFUL'); } /** * @dev Internal function to validate a new dependency. It checks the dependency is registered and not deprecated. * @param dependency New dependency to be set * @return Whether the dependency is stateless or not */ function _validateDependency(address dependency) private view returns (bool) { (bool stateless, bool deprecated, bytes32 namespace) = IRegistry(registry).implementationData(dependency); require(namespace != bytes32(0), 'DEPENDENCY_NOT_REGISTERED'); require(!deprecated, 'DEPENDENCY_DEPRECATED'); return stateless; } }
// SPDX-License-Identifier: GPL-3.0-or-later // This program is free software: you can redistribute it and/or modify // it under the terms of the GNU General Public License as published by // the Free Software Foundation, either version 3 of the License, or // (at your option) any later version. // This program is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // You should have received a copy of the GNU General Public License // along with this program. If not, see <http://www.gnu.org/licenses/>. pragma solidity >=0.8.0; // solhint-disable func-name-mixedcase /** * @title IImplementation * @dev Implementation interface that must be followed for implementations to be registered in the Mimic Registry */ interface IImplementation { /** * @dev Tells the namespace under which the implementation is registered in the Mimic Registry */ function NAMESPACE() external view returns (bytes32); /** * @dev Tells the address of the Mimic Registry */ function registry() external view returns (address); }
// SPDX-License-Identifier: GPL-3.0-or-later // This program is free software: you can redistribute it and/or modify // it under the terms of the GNU General Public License as published by // the Free Software Foundation, either version 3 of the License, or // (at your option) any later version. // This program is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // You should have received a copy of the GNU General Public License // along with this program. If not, see <http://www.gnu.org/licenses/>. pragma solidity ^0.8.0; import '@mimic-fi/v2-helpers/contracts/auth/Authorizer.sol'; import './InitializableImplementation.sol'; /** * @title InitializableAuthorizedImplementation * @dev InitializableImplementation using the Authorizer mixin. Initializable implementations that want to use the * Authorizer permissions mechanism should inherit from this contract instead. */ abstract contract InitializableAuthorizedImplementation is InitializableImplementation, Authorizer { /** * @dev Creates a new InitializableAuthorizedImplementation * @param registry Address of the Mimic Registry */ constructor(address registry) InitializableImplementation(registry) { // solhint-disable-previous-line no-empty-blocks } /** * @dev Initialization function that authorizes an admin account to authorize and unauthorize accounts. * Note this function can only be called from a function marked with the `initializer` modifier. * @param admin Address to be granted authorize and unauthorize permissions */ function _initialize(address admin) internal onlyInitializing { _initialize(); _authorize(admin, Authorizer.authorize.selector); _authorize(admin, Authorizer.unauthorize.selector); } }
// SPDX-License-Identifier: GPL-3.0-or-later // This program is free software: you can redistribute it and/or modify // it under the terms of the GNU General Public License as published by // the Free Software Foundation, either version 3 of the License, or // (at your option) any later version. // This program is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // You should have received a copy of the GNU General Public License // along with this program. If not, see <http://www.gnu.org/licenses/>. pragma solidity ^0.8.0; import '@openzeppelin/contracts/proxy/utils/Initializable.sol'; import './BaseImplementation.sol'; /** * @title InitializableImplementation * @dev Implementation contract to be used through proxies. Inheriting contracts are meant to be initialized through * initialization functions instead of constructor functions. It allows re-using the same logic contract while making * deployments cheaper. */ abstract contract InitializableImplementation is BaseImplementation, Initializable { /** * @dev Creates a new BaseImplementation. Note that initializers are disabled at creation time. */ constructor(address registry) BaseImplementation(registry) { _disableInitializers(); } /** * @dev Initialization function. * Note this function can only be called from a function marked with the `initializer` modifier. */ function _initialize() internal view onlyInitializing { // solhint-disable-previous-line no-empty-blocks } }
// SPDX-License-Identifier: GPL-3.0-or-later // This program is free software: you can redistribute it and/or modify // it under the terms of the GNU General Public License as published by // the Free Software Foundation, either version 3 of the License, or // (at your option) any later version. // This program is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // You should have received a copy of the GNU General Public License // along with this program. If not, see <http://www.gnu.org/licenses/>. pragma solidity >=0.8.0; import '@mimic-fi/v2-helpers/contracts/auth/IAuthorizer.sol'; /** * @title IRegistry * @dev Registry interface, it must follow the IAuthorizer interface. */ interface IRegistry is IAuthorizer { /** * @dev Emitted every time a new implementation is registered */ event Registered(bytes32 indexed namespace, address indexed implementation, bool stateless); /** * @dev Emitted every time an implementation is deprecated */ event Deprecated(bytes32 indexed namespace, address indexed implementation); /** * @dev Tells the data of an implementation: * @param implementation Address of the implementation to request it's data */ function implementationData(address implementation) external view returns (bool stateless, bool deprecated, bytes32 namespace); /** * @dev Tells if a specific implementation is registered under a certain namespace and it's not deprecated * @param namespace Namespace asking for * @param implementation Address of the implementation to be checked */ function isActive(bytes32 namespace, address implementation) external view returns (bool); /** * @dev Registers a new implementation for a given namespace * @param namespace Namespace to be used for the implementation * @param implementation Address of the implementation to be registered * @param stateless Whether the implementation is stateless or not */ function register(bytes32 namespace, address implementation, bool stateless) external; /** * @dev Deprecates a registered implementation * @param implementation Address of the implementation to be deprecated */ function deprecate(address implementation) external; }
// SPDX-License-Identifier: GPL-3.0-or-later // This program is free software: you can redistribute it and/or modify // it under the terms of the GNU General Public License as published by // the Free Software Foundation, either version 3 of the License, or // (at your option) any later version. // This program is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // You should have received a copy of the GNU General Public License // along with this program. If not, see <http://www.gnu.org/licenses/>. pragma solidity ^0.8.0; import '@mimic-fi/v2-registry/contracts/implementations/IImplementation.sol'; /** * @title IStrategy * @dev Strategy interface required by Mimic Smart Vaults. It must follow the IImplementation interface. */ interface IStrategy is IImplementation { /** * @dev Tokens accepted to join the strategy */ function joinTokens() external view returns (address[] memory); /** * @dev Tokens accepted to exit the strategy */ function exitTokens() external view returns (address[] memory); /** * @dev Tells how much a value unit means expressed in the asset token. * For example, if a strategy has a value of 100 in T0, and then it has a value of 120 in T1, * and the value rate is 1.5, it means the strategy has earned 30 strategy tokens between T0 and T1. */ function valueRate() external view returns (uint256); /** * @dev Tells the last value an account has over time. Note this value can be outdated: there could be rewards to * be claimed that will affect the accrued value. For example, if an account has a value of 100 in T0, and then it * has a value of 120 in T1, it means it gained a 20% between T0 and T1. * @param account Address of the account querying the last value of */ function lastValue(address account) external view returns (uint256); /** * @dev Claim any existing rewards * @param data Arbitrary extra data * @return tokens Addresses of the tokens received as rewards * @return amounts Amounts of the tokens received as rewards */ function claim(bytes memory data) external returns (address[] memory tokens, uint256[] memory amounts); /** * @dev Join the interfaced DeFi protocol * @param tokensIn List of token addresses to join with * @param amountsIn List of token amounts to join with * @param slippage Slippage value to join with * @param data Arbitrary extra data * @return tokensOut List of token addresses received after the join * @return amountsOut List of token amounts received after the join * @return value Value represented by the joined amount */ function join(address[] memory tokensIn, uint256[] memory amountsIn, uint256 slippage, bytes memory data) external returns (address[] memory tokensOut, uint256[] memory amountsOut, uint256 value); /** * @dev Exit the interfaced DeFi protocol * @param tokensIn List of token addresses to exit with * @param amountsIn List of token amounts to exit with * @param slippage Slippage value to exit with * @param data Arbitrary extra data * @return tokensOut List of token addresses received after the exit * @return amountsOut List of token amounts received after the exit * @return value Value represented by the exited amount */ function exit(address[] memory tokensIn, uint256[] memory amountsIn, uint256 slippage, bytes memory data) external returns (address[] memory tokensOut, uint256[] memory amountsOut, uint256 value); }
// SPDX-License-Identifier: GPL-3.0-or-later // This program is free software: you can redistribute it and/or modify // it under the terms of the GNU General Public License as published by // the Free Software Foundation, either version 3 of the License, or // (at your option) any later version. // This program is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // You should have received a copy of the GNU General Public License // along with this program. If not, see <http://www.gnu.org/licenses/>. pragma solidity >=0.8.0; import '@mimic-fi/v2-registry/contracts/implementations/IImplementation.sol'; /** * @title ISwapConnector * @dev Swap Connector interface to perform token swaps. It must follow the IImplementation interface. */ interface ISwapConnector is IImplementation { /** * @dev Enum identifying the sources proposed: Uniswap V2, Uniswap V3, Balancer V2, Paraswap V5, 1inch V5, and Hop. */ enum Source { UniswapV2, UniswapV3, BalancerV2, ParaswapV5, OneInchV5, Hop } /** * @dev Swaps two tokens * @param source Source to execute the requested swap * @param tokenIn Token being sent * @param tokenOut Token being received * @param amountIn Amount of tokenIn being swapped * @param minAmountOut Minimum amount of tokenOut willing to receive * @param data Encoded data to specify different swap parameters depending on the source picked */ function swap( uint8 source, address tokenIn, address tokenOut, uint256 amountIn, uint256 minAmountOut, bytes memory data ) external returns (uint256 amountOut); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (proxy/Clones.sol) pragma solidity ^0.8.0; /** * @dev https://eips.ethereum.org/EIPS/eip-1167[EIP 1167] is a standard for * deploying minimal proxy contracts, also known as "clones". * * > To simply and cheaply clone contract functionality in an immutable way, this standard specifies * > a minimal bytecode implementation that delegates all calls to a known, fixed address. * * The library includes functions to deploy a proxy using either `create` (traditional deployment) or `create2` * (salted deterministic deployment). It also includes functions to predict the addresses of clones deployed using the * deterministic method. * * _Available since v3.4._ */ library Clones { /** * @dev Deploys and returns the address of a clone that mimics the behaviour of `implementation`. * * This function uses the create opcode, which should never revert. */ function clone(address implementation) internal returns (address instance) { /// @solidity memory-safe-assembly assembly { let ptr := mload(0x40) mstore(ptr, 0x3d602d80600a3d3981f3363d3d373d3d3d363d73000000000000000000000000) mstore(add(ptr, 0x14), shl(0x60, implementation)) mstore(add(ptr, 0x28), 0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000) instance := create(0, ptr, 0x37) } require(instance != address(0), "ERC1167: create failed"); } /** * @dev Deploys and returns the address of a clone that mimics the behaviour of `implementation`. * * This function uses the create2 opcode and a `salt` to deterministically deploy * the clone. Using the same `implementation` and `salt` multiple time will revert, since * the clones cannot be deployed twice at the same address. */ function cloneDeterministic(address implementation, bytes32 salt) internal returns (address instance) { /// @solidity memory-safe-assembly assembly { let ptr := mload(0x40) mstore(ptr, 0x3d602d80600a3d3981f3363d3d373d3d3d363d73000000000000000000000000) mstore(add(ptr, 0x14), shl(0x60, implementation)) mstore(add(ptr, 0x28), 0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000) instance := create2(0, ptr, 0x37, salt) } require(instance != address(0), "ERC1167: create2 failed"); } /** * @dev Computes the address of a clone deployed using {Clones-cloneDeterministic}. */ function predictDeterministicAddress( address implementation, bytes32 salt, address deployer ) internal pure returns (address predicted) { /// @solidity memory-safe-assembly assembly { let ptr := mload(0x40) mstore(ptr, 0x3d602d80600a3d3981f3363d3d373d3d3d363d73000000000000000000000000) mstore(add(ptr, 0x14), shl(0x60, implementation)) mstore(add(ptr, 0x28), 0x5af43d82803e903d91602b57fd5bf3ff00000000000000000000000000000000) mstore(add(ptr, 0x38), shl(0x60, deployer)) mstore(add(ptr, 0x4c), salt) mstore(add(ptr, 0x6c), keccak256(ptr, 0x37)) predicted := keccak256(add(ptr, 0x37), 0x55) } } /** * @dev Computes the address of a clone deployed using {Clones-cloneDeterministic}. */ function predictDeterministicAddress(address implementation, bytes32 salt) internal view returns (address predicted) { return predictDeterministicAddress(implementation, salt, address(this)); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (proxy/utils/Initializable.sol) pragma solidity ^0.8.2; import "../../utils/Address.sol"; /** * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed * behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect. * * The initialization functions use a version number. Once a version number is used, it is consumed and cannot be * reused. This mechanism prevents re-execution of each "step" but allows the creation of new initialization steps in * case an upgrade adds a module that needs to be initialized. * * For example: * * [.hljs-theme-light.nopadding] * ``` * contract MyToken is ERC20Upgradeable { * function initialize() initializer public { * __ERC20_init("MyToken", "MTK"); * } * } * contract MyTokenV2 is MyToken, ERC20PermitUpgradeable { * function initializeV2() reinitializer(2) public { * __ERC20Permit_init("MyToken"); * } * } * ``` * * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}. * * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity. * * [CAUTION] * ==== * Avoid leaving a contract uninitialized. * * An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation * contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke * the {_disableInitializers} function in the constructor to automatically lock it when it is deployed: * * [.hljs-theme-light.nopadding] * ``` * /// @custom:oz-upgrades-unsafe-allow constructor * constructor() { * _disableInitializers(); * } * ``` * ==== */ abstract contract Initializable { /** * @dev Indicates that the contract has been initialized. * @custom:oz-retyped-from bool */ uint8 private _initialized; /** * @dev Indicates that the contract is in the process of being initialized. */ bool private _initializing; /** * @dev Triggered when the contract has been initialized or reinitialized. */ event Initialized(uint8 version); /** * @dev A modifier that defines a protected initializer function that can be invoked at most once. In its scope, * `onlyInitializing` functions can be used to initialize parent contracts. Equivalent to `reinitializer(1)`. */ modifier initializer() { bool isTopLevelCall = !_initializing; require( (isTopLevelCall && _initialized < 1) || (!Address.isContract(address(this)) && _initialized == 1), "Initializable: contract is already initialized" ); _initialized = 1; if (isTopLevelCall) { _initializing = true; } _; if (isTopLevelCall) { _initializing = false; emit Initialized(1); } } /** * @dev A modifier that defines a protected reinitializer function that can be invoked at most once, and only if the * contract hasn't been initialized to a greater version before. In its scope, `onlyInitializing` functions can be * used to initialize parent contracts. * * `initializer` is equivalent to `reinitializer(1)`, so a reinitializer may be used after the original * initialization step. This is essential to configure modules that are added through upgrades and that require * initialization. * * Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in * a contract, executing them in the right order is up to the developer or operator. */ modifier reinitializer(uint8 version) { require(!_initializing && _initialized < version, "Initializable: contract is already initialized"); _initialized = version; _initializing = true; _; _initializing = false; emit Initialized(version); } /** * @dev Modifier to protect an initialization function so that it can only be invoked by functions with the * {initializer} and {reinitializer} modifiers, directly or indirectly. */ modifier onlyInitializing() { require(_initializing, "Initializable: contract is not initializing"); _; } /** * @dev Locks the contract, preventing any future reinitialization. This cannot be part of an initializer call. * Calling this in the constructor of a contract will prevent that contract from being initialized or reinitialized * to any version. It is recommended to use this to lock implementation contracts that are designed to be called * through proxies. */ function _disableInitializers() internal virtual { require(!_initializing, "Initializable: contract is initializing"); if (_initialized < type(uint8).max) { _initialized = type(uint8).max; emit Initialized(type(uint8).max); } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (token/ERC20/ERC20.sol) pragma solidity ^0.8.0; import "./IERC20.sol"; import "./extensions/IERC20Metadata.sol"; import "../../utils/Context.sol"; /** * @dev Implementation of the {IERC20} interface. * * This implementation is agnostic to the way tokens are created. This means * that a supply mechanism has to be added in a derived contract using {_mint}. * For a generic mechanism see {ERC20PresetMinterPauser}. * * TIP: For a detailed writeup see our guide * https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How * to implement supply mechanisms]. * * We have followed general OpenZeppelin Contracts guidelines: functions revert * instead returning `false` on failure. This behavior is nonetheless * conventional and does not conflict with the expectations of ERC20 * applications. * * Additionally, an {Approval} event is emitted on calls to {transferFrom}. * This allows applications to reconstruct the allowance for all accounts just * by listening to said events. Other implementations of the EIP may not emit * these events, as it isn't required by the specification. * * Finally, the non-standard {decreaseAllowance} and {increaseAllowance} * functions have been added to mitigate the well-known issues around setting * allowances. See {IERC20-approve}. */ contract ERC20 is Context, IERC20, IERC20Metadata { mapping(address => uint256) private _balances; mapping(address => mapping(address => uint256)) private _allowances; uint256 private _totalSupply; string private _name; string private _symbol; /** * @dev Sets the values for {name} and {symbol}. * * The default value of {decimals} is 18. To select a different value for * {decimals} you should overload it. * * All two of these values are immutable: they can only be set once during * construction. */ constructor(string memory name_, string memory symbol_) { _name = name_; _symbol = symbol_; } /** * @dev Returns the name of the token. */ function name() public view virtual override returns (string memory) { return _name; } /** * @dev Returns the symbol of the token, usually a shorter version of the * name. */ function symbol() public view virtual override returns (string memory) { return _symbol; } /** * @dev Returns the number of decimals used to get its user representation. * For example, if `decimals` equals `2`, a balance of `505` tokens should * be displayed to a user as `5.05` (`505 / 10 ** 2`). * * Tokens usually opt for a value of 18, imitating the relationship between * Ether and Wei. This is the value {ERC20} uses, unless this function is * overridden; * * NOTE: This information is only used for _display_ purposes: it in * no way affects any of the arithmetic of the contract, including * {IERC20-balanceOf} and {IERC20-transfer}. */ function decimals() public view virtual override returns (uint8) { return 18; } /** * @dev See {IERC20-totalSupply}. */ function totalSupply() public view virtual override returns (uint256) { return _totalSupply; } /** * @dev See {IERC20-balanceOf}. */ function balanceOf(address account) public view virtual override returns (uint256) { return _balances[account]; } /** * @dev See {IERC20-transfer}. * * Requirements: * * - `to` cannot be the zero address. * - the caller must have a balance of at least `amount`. */ function transfer(address to, uint256 amount) public virtual override returns (bool) { address owner = _msgSender(); _transfer(owner, to, amount); return true; } /** * @dev See {IERC20-allowance}. */ function allowance(address owner, address spender) public view virtual override returns (uint256) { return _allowances[owner][spender]; } /** * @dev See {IERC20-approve}. * * NOTE: If `amount` is the maximum `uint256`, the allowance is not updated on * `transferFrom`. This is semantically equivalent to an infinite approval. * * Requirements: * * - `spender` cannot be the zero address. */ function approve(address spender, uint256 amount) public virtual override returns (bool) { address owner = _msgSender(); _approve(owner, spender, amount); return true; } /** * @dev See {IERC20-transferFrom}. * * Emits an {Approval} event indicating the updated allowance. This is not * required by the EIP. See the note at the beginning of {ERC20}. * * NOTE: Does not update the allowance if the current allowance * is the maximum `uint256`. * * Requirements: * * - `from` and `to` cannot be the zero address. * - `from` must have a balance of at least `amount`. * - the caller must have allowance for ``from``'s tokens of at least * `amount`. */ function transferFrom( address from, address to, uint256 amount ) public virtual override returns (bool) { address spender = _msgSender(); _spendAllowance(from, spender, amount); _transfer(from, to, amount); return true; } /** * @dev Atomically increases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. */ function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) { address owner = _msgSender(); _approve(owner, spender, allowance(owner, spender) + addedValue); return true; } /** * @dev Atomically decreases the allowance granted to `spender` by the caller. * * This is an alternative to {approve} that can be used as a mitigation for * problems described in {IERC20-approve}. * * Emits an {Approval} event indicating the updated allowance. * * Requirements: * * - `spender` cannot be the zero address. * - `spender` must have allowance for the caller of at least * `subtractedValue`. */ function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) { address owner = _msgSender(); uint256 currentAllowance = allowance(owner, spender); require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero"); unchecked { _approve(owner, spender, currentAllowance - subtractedValue); } return true; } /** * @dev Moves `amount` of tokens from `from` to `to`. * * This internal function is equivalent to {transfer}, and can be used to * e.g. implement automatic token fees, slashing mechanisms, etc. * * Emits a {Transfer} event. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `from` must have a balance of at least `amount`. */ function _transfer( address from, address to, uint256 amount ) internal virtual { require(from != address(0), "ERC20: transfer from the zero address"); require(to != address(0), "ERC20: transfer to the zero address"); _beforeTokenTransfer(from, to, amount); uint256 fromBalance = _balances[from]; require(fromBalance >= amount, "ERC20: transfer amount exceeds balance"); unchecked { _balances[from] = fromBalance - amount; } _balances[to] += amount; emit Transfer(from, to, amount); _afterTokenTransfer(from, to, amount); } /** @dev Creates `amount` tokens and assigns them to `account`, increasing * the total supply. * * Emits a {Transfer} event with `from` set to the zero address. * * Requirements: * * - `account` cannot be the zero address. */ function _mint(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: mint to the zero address"); _beforeTokenTransfer(address(0), account, amount); _totalSupply += amount; _balances[account] += amount; emit Transfer(address(0), account, amount); _afterTokenTransfer(address(0), account, amount); } /** * @dev Destroys `amount` tokens from `account`, reducing the * total supply. * * Emits a {Transfer} event with `to` set to the zero address. * * Requirements: * * - `account` cannot be the zero address. * - `account` must have at least `amount` tokens. */ function _burn(address account, uint256 amount) internal virtual { require(account != address(0), "ERC20: burn from the zero address"); _beforeTokenTransfer(account, address(0), amount); uint256 accountBalance = _balances[account]; require(accountBalance >= amount, "ERC20: burn amount exceeds balance"); unchecked { _balances[account] = accountBalance - amount; } _totalSupply -= amount; emit Transfer(account, address(0), amount); _afterTokenTransfer(account, address(0), amount); } /** * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens. * * This internal function is equivalent to `approve`, and can be used to * e.g. set automatic allowances for certain subsystems, etc. * * Emits an {Approval} event. * * Requirements: * * - `owner` cannot be the zero address. * - `spender` cannot be the zero address. */ function _approve( address owner, address spender, uint256 amount ) internal virtual { require(owner != address(0), "ERC20: approve from the zero address"); require(spender != address(0), "ERC20: approve to the zero address"); _allowances[owner][spender] = amount; emit Approval(owner, spender, amount); } /** * @dev Updates `owner` s allowance for `spender` based on spent `amount`. * * Does not update the allowance amount in case of infinite allowance. * Revert if not enough allowance is available. * * Might emit an {Approval} event. */ function _spendAllowance( address owner, address spender, uint256 amount ) internal virtual { uint256 currentAllowance = allowance(owner, spender); if (currentAllowance != type(uint256).max) { require(currentAllowance >= amount, "ERC20: insufficient allowance"); unchecked { _approve(owner, spender, currentAllowance - amount); } } } /** * @dev Hook that is called before any transfer of tokens. This includes * minting and burning. * * Calling conditions: * * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens * will be transferred to `to`. * - when `from` is zero, `amount` tokens will be minted for `to`. * - when `to` is zero, `amount` of ``from``'s tokens will be burned. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _beforeTokenTransfer( address from, address to, uint256 amount ) internal virtual {} /** * @dev Hook that is called after any transfer of tokens. This includes * minting and burning. * * Calling conditions: * * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens * has been transferred to `to`. * - when `from` is zero, `amount` tokens have been minted for `to`. * - when `to` is zero, `amount` of ``from``'s tokens have been burned. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _afterTokenTransfer( address from, address to, uint256 amount ) internal virtual {} }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/draft-IERC20Permit.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612]. * * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by * presenting a message signed by the account. By not relying on {IERC20-approve}, the token holder account doesn't * need to send a transaction, and thus is not required to hold Ether at all. */ interface IERC20Permit { /** * @dev Sets `value` as the allowance of `spender` over ``owner``'s tokens, * given ``owner``'s signed approval. * * IMPORTANT: The same issues {IERC20-approve} has related to transaction * ordering also apply here. * * Emits an {Approval} event. * * Requirements: * * - `spender` cannot be the zero address. * - `deadline` must be a timestamp in the future. * - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner` * over the EIP712-formatted function arguments. * - the signature must use ``owner``'s current nonce (see {nonces}). * * For more information on the signature format, see the * https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP * section]. */ function permit( address owner, address spender, uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s ) external; /** * @dev Returns the current nonce for `owner`. This value must be * included whenever a signature is generated for {permit}. * * Every successful call to {permit} increases ``owner``'s nonce by one. This * prevents a signature from being used multiple times. */ function nonces(address owner) external view returns (uint256); /** * @dev Returns the domain separator used in the encoding of the signature for {permit}, as defined by {EIP712}. */ // solhint-disable-next-line func-name-mixedcase function DOMAIN_SEPARATOR() external view returns (bytes32); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/IERC20Metadata.sol) pragma solidity ^0.8.0; import "../IERC20.sol"; /** * @dev Interface for the optional metadata functions from the ERC20 standard. * * _Available since v4.1._ */ interface IERC20Metadata is IERC20 { /** * @dev Returns the name of the token. */ function name() external view returns (string memory); /** * @dev Returns the symbol of the token. */ function symbol() external view returns (string memory); /** * @dev Returns the decimals places of the token. */ function decimals() external view returns (uint8); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC20 standard as defined in the EIP. */ interface IERC20 { /** * @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); /** * @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 `to`. * * Returns a boolean value indicating whether the operation succeeded. * * Emits a {Transfer} event. */ function transfer(address to, 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 `from` to `to` 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 from, address to, uint256 amount ) external returns (bool); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (token/ERC20/utils/SafeERC20.sol) pragma solidity ^0.8.0; import "../IERC20.sol"; import "../extensions/draft-IERC20Permit.sol"; import "../../../utils/Address.sol"; /** * @title SafeERC20 * @dev Wrappers around ERC20 operations that throw on failure (when the token * contract returns false). Tokens that return no value (and instead revert or * throw on failure) are also supported, non-reverting calls are assumed to be * successful. * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract, * which allows you to call the safe operations as `token.safeTransfer(...)`, etc. */ library SafeERC20 { using Address for address; function safeTransfer( IERC20 token, address to, uint256 value ) internal { _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value)); } function safeTransferFrom( IERC20 token, address from, address to, uint256 value ) internal { _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value)); } /** * @dev Deprecated. This function has issues similar to the ones found in * {IERC20-approve}, and its usage is discouraged. * * Whenever possible, use {safeIncreaseAllowance} and * {safeDecreaseAllowance} instead. */ function safeApprove( IERC20 token, address spender, uint256 value ) internal { // safeApprove should only be called when setting an initial allowance, // or when resetting it to zero. To increase and decrease it, use // 'safeIncreaseAllowance' and 'safeDecreaseAllowance' require( (value == 0) || (token.allowance(address(this), spender) == 0), "SafeERC20: approve from non-zero to non-zero allowance" ); _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value)); } function safeIncreaseAllowance( IERC20 token, address spender, uint256 value ) internal { uint256 newAllowance = token.allowance(address(this), spender) + value; _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance)); } function safeDecreaseAllowance( IERC20 token, address spender, uint256 value ) internal { unchecked { uint256 oldAllowance = token.allowance(address(this), spender); require(oldAllowance >= value, "SafeERC20: decreased allowance below zero"); uint256 newAllowance = oldAllowance - value; _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance)); } } function safePermit( IERC20Permit token, address owner, address spender, uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s ) internal { uint256 nonceBefore = token.nonces(owner); token.permit(owner, spender, value, deadline, v, r, s); uint256 nonceAfter = token.nonces(owner); require(nonceAfter == nonceBefore + 1, "SafeERC20: permit did not succeed"); } /** * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement * on the return value: the return value is optional (but if data is returned, it must not be false). * @param token The token targeted by the call. * @param data The call data (encoded using abi.encode or one of its variants). */ function _callOptionalReturn(IERC20 token, bytes memory data) private { // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since // we're implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that // the target address contains contract code and also asserts for success in the low-level call. bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed"); if (returndata.length > 0) { // Return data is optional require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed"); } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (utils/Address.sol) pragma solidity ^0.8.1; /** * @dev Collection of functions related to the address type */ library Address { /** * @dev Returns true if `account` is a contract. * * [IMPORTANT] * ==== * It is unsafe to assume that an address for which this function returns * false is an externally-owned account (EOA) and not a contract. * * Among others, `isContract` will return false for the following * types of addresses: * * - an externally-owned account * - a contract in construction * - an address where a contract will be created * - an address where a contract lived, but was destroyed * ==== * * [IMPORTANT] * ==== * You shouldn't rely on `isContract` to protect against flash loan attacks! * * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract * constructor. * ==== */ function isContract(address account) internal view returns (bool) { // This method relies on extcodesize/address.code.length, which returns 0 // for contracts in construction, since the code is only stored at the end // of the constructor execution. return account.code.length > 0; } /** * @dev Replacement for Solidity's `transfer`: sends `amount` wei to * `recipient`, forwarding all available gas and reverting on errors. * * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost * of certain opcodes, possibly making contracts go over the 2300 gas limit * imposed by `transfer`, making them unable to receive funds via * `transfer`. {sendValue} removes this limitation. * * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more]. * * IMPORTANT: because control is transferred to `recipient`, care must be * taken to not create reentrancy vulnerabilities. Consider using * {ReentrancyGuard} or the * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. */ function sendValue(address payable recipient, uint256 amount) internal { require(address(this).balance >= amount, "Address: insufficient balance"); (bool success, ) = recipient.call{value: amount}(""); require(success, "Address: unable to send value, recipient may have reverted"); } /** * @dev Performs a Solidity function call using a low level `call`. A * plain `call` is an unsafe replacement for a function call: use this * function instead. * * If `target` reverts with a revert reason, it is bubbled up by this * function (like regular Solidity function calls). * * Returns the raw returned data. To convert to the expected return value, * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. * * Requirements: * * - `target` must be a contract. * - calling `target` with `data` must not revert. * * _Available since v3.1._ */ function functionCall(address target, bytes memory data) internal returns (bytes memory) { return functionCall(target, data, "Address: low-level call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with * `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { return functionCallWithValue(target, data, 0, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but also transferring `value` wei to `target`. * * Requirements: * * - the calling contract must have an ETH balance of at least `value`. * - the called Solidity function must be `payable`. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value ) internal returns (bytes memory) { return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); } /** * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but * with `errorMessage` as a fallback revert reason when `target` reverts. * * _Available since v3.1._ */ function functionCallWithValue( address target, bytes memory data, uint256 value, string memory errorMessage ) internal returns (bytes memory) { require(address(this).balance >= value, "Address: insufficient balance for call"); require(isContract(target), "Address: call to non-contract"); (bool success, bytes memory returndata) = target.call{value: value}(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { return functionStaticCall(target, data, "Address: low-level static call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a static call. * * _Available since v3.3._ */ function functionStaticCall( address target, bytes memory data, string memory errorMessage ) internal view returns (bytes memory) { require(isContract(target), "Address: static call to non-contract"); (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { return functionDelegateCall(target, data, "Address: low-level delegate call failed"); } /** * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], * but performing a delegate call. * * _Available since v3.4._ */ function functionDelegateCall( address target, bytes memory data, string memory errorMessage ) internal returns (bytes memory) { require(isContract(target), "Address: delegate call to non-contract"); (bool success, bytes memory returndata) = target.delegatecall(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the * revert reason using the provided one. * * _Available since v4.3._ */ function verifyCallResult( bool success, bytes memory returndata, string memory errorMessage ) internal pure returns (bytes memory) { if (success) { return returndata; } else { // Look for revert reason and bubble it up if present if (returndata.length > 0) { // The easiest way to bubble the revert reason is using memory via assembly /// @solidity memory-safe-assembly assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/Context.sol) pragma solidity ^0.8.0; /** * @dev Provides information about the current execution context, including the * sender of the transaction and its data. While these are generally available * via msg.sender and msg.data, they should not be accessed in such a direct * manner, since when dealing with meta-transactions the account sending and * paying for execution may not be the actual sender (as far as an application * is concerned). * * This contract is only required for intermediate, library-like contracts. */ abstract contract Context { function _msgSender() internal view virtual returns (address) { return msg.sender; } function _msgData() internal view virtual returns (bytes calldata) { return msg.data; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (utils/math/Math.sol) pragma solidity ^0.8.0; /** * @dev Standard math utilities missing in the Solidity language. */ library Math { enum Rounding { Down, // Toward negative infinity Up, // Toward infinity Zero // Toward zero } /** * @dev Returns the largest of two numbers. */ function max(uint256 a, uint256 b) internal pure returns (uint256) { return a >= b ? a : b; } /** * @dev Returns the smallest of two numbers. */ function min(uint256 a, uint256 b) internal pure returns (uint256) { return a < b ? a : b; } /** * @dev Returns the average of two numbers. The result is rounded towards * zero. */ function average(uint256 a, uint256 b) internal pure returns (uint256) { // (a + b) / 2 can overflow. return (a & b) + (a ^ b) / 2; } /** * @dev Returns the ceiling of the division of two numbers. * * This differs from standard division with `/` in that it rounds up instead * of rounding down. */ function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) { // (a + b - 1) / b can overflow on addition, so we distribute. return a == 0 ? 0 : (a - 1) / b + 1; } /** * @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or denominator == 0 * @dev Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv) * with further edits by Uniswap Labs also under MIT license. */ function mulDiv( uint256 x, uint256 y, uint256 denominator ) internal pure returns (uint256 result) { unchecked { // 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use // use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256 // variables such that product = prod1 * 2^256 + prod0. uint256 prod0; // Least significant 256 bits of the product uint256 prod1; // Most significant 256 bits of the product assembly { let mm := mulmod(x, y, not(0)) prod0 := mul(x, y) prod1 := sub(sub(mm, prod0), lt(mm, prod0)) } // Handle non-overflow cases, 256 by 256 division. if (prod1 == 0) { return prod0 / denominator; } // Make sure the result is less than 2^256. Also prevents denominator == 0. require(denominator > prod1); /////////////////////////////////////////////// // 512 by 256 division. /////////////////////////////////////////////// // Make division exact by subtracting the remainder from [prod1 prod0]. uint256 remainder; assembly { // Compute remainder using mulmod. remainder := mulmod(x, y, denominator) // Subtract 256 bit number from 512 bit number. prod1 := sub(prod1, gt(remainder, prod0)) prod0 := sub(prod0, remainder) } // Factor powers of two out of denominator and compute largest power of two divisor of denominator. Always >= 1. // See https://cs.stackexchange.com/q/138556/92363. // Does not overflow because the denominator cannot be zero at this stage in the function. uint256 twos = denominator & (~denominator + 1); assembly { // Divide denominator by twos. denominator := div(denominator, twos) // Divide [prod1 prod0] by twos. prod0 := div(prod0, twos) // Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one. twos := add(div(sub(0, twos), twos), 1) } // Shift in bits from prod1 into prod0. prod0 |= prod1 * twos; // Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such // that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for // four bits. That is, denominator * inv = 1 mod 2^4. uint256 inverse = (3 * denominator) ^ 2; // Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also works // in modular arithmetic, doubling the correct bits in each step. inverse *= 2 - denominator * inverse; // inverse mod 2^8 inverse *= 2 - denominator * inverse; // inverse mod 2^16 inverse *= 2 - denominator * inverse; // inverse mod 2^32 inverse *= 2 - denominator * inverse; // inverse mod 2^64 inverse *= 2 - denominator * inverse; // inverse mod 2^128 inverse *= 2 - denominator * inverse; // inverse mod 2^256 // Because the division is now exact we can divide by multiplying with the modular inverse of denominator. // This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is // less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1 // is no longer required. result = prod0 * inverse; return result; } } /** * @notice Calculates x * y / denominator with full precision, following the selected rounding direction. */ function mulDiv( uint256 x, uint256 y, uint256 denominator, Rounding rounding ) internal pure returns (uint256) { uint256 result = mulDiv(x, y, denominator); if (rounding == Rounding.Up && mulmod(x, y, denominator) > 0) { result += 1; } return result; } /** * @dev Returns the square root of a number. It the number is not a perfect square, the value is rounded down. * * Inspired by Henry S. Warren, Jr.'s "Hacker's Delight" (Chapter 11). */ function sqrt(uint256 a) internal pure returns (uint256) { if (a == 0) { return 0; } // For our first guess, we get the biggest power of 2 which is smaller than the square root of the target. // We know that the "msb" (most significant bit) of our target number `a` is a power of 2 such that we have // `msb(a) <= a < 2*msb(a)`. // We also know that `k`, the position of the most significant bit, is such that `msb(a) = 2**k`. // This gives `2**k < a <= 2**(k+1)` → `2**(k/2) <= sqrt(a) < 2 ** (k/2+1)`. // Using an algorithm similar to the msb conmputation, we are able to compute `result = 2**(k/2)` which is a // good first aproximation of `sqrt(a)` with at least 1 correct bit. uint256 result = 1; uint256 x = a; if (x >> 128 > 0) { x >>= 128; result <<= 64; } if (x >> 64 > 0) { x >>= 64; result <<= 32; } if (x >> 32 > 0) { x >>= 32; result <<= 16; } if (x >> 16 > 0) { x >>= 16; result <<= 8; } if (x >> 8 > 0) { x >>= 8; result <<= 4; } if (x >> 4 > 0) { x >>= 4; result <<= 2; } if (x >> 2 > 0) { result <<= 1; } // At this point `result` is an estimation with one bit of precision. We know the true value is a uint128, // since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at // every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision // into the expected uint128 result. unchecked { result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; return min(result, a / result); } } /** * @notice Calculates sqrt(a), following the selected rounding direction. */ function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) { uint256 result = sqrt(a); if (rounding == Rounding.Up && result * result < a) { result += 1; } return result; } }
// SPDX-License-Identifier: GPL-3.0-or-later // This program is free software: you can redistribute it and/or modify // it under the terms of the GNU General Public License as published by // the Free Software Foundation, either version 3 of the License, or // (at your option) any later version. // This program is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // You should have received a copy of the GNU General Public License // along with this program. If not, see <http://www.gnu.org/licenses/>. pragma solidity ^0.8.0; import '@openzeppelin/contracts/utils/Address.sol'; import '@mimic-fi/v2-bridge-connector/contracts/IBridgeConnector.sol'; /** * @title BridgeConnectorLib * @dev Library used to delegate-call bridge ops and decode return data correctly */ library BridgeConnectorLib { /** * @dev Delegate-calls a bridge to the bridge connector and decodes de expected data * IMPORTANT! This helper method does not check any of the given params, these should be checked beforehand. */ function bridge( address connector, uint8 source, uint256 chainId, address token, uint256 amountIn, uint256 minAmountOut, address recipient, bytes memory data ) internal { bytes memory bridgeData = abi.encodeWithSelector( IBridgeConnector.bridge.selector, source, chainId, token, amountIn, minAmountOut, recipient, data ); // solhint-disable-next-line avoid-low-level-calls (bool success, bytes memory returndata) = connector.delegatecall(bridgeData); Address.verifyCallResult(success, returndata, 'BRIDGE_CALL_REVERTED'); } }
// SPDX-License-Identifier: GPL-3.0-or-later // This program is free software: you can redistribute it and/or modify // it under the terms of the GNU General Public License as published by // the Free Software Foundation, either version 3 of the License, or // (at your option) any later version. // This program is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // You should have received a copy of the GNU General Public License // along with this program. If not, see <http://www.gnu.org/licenses/>. pragma solidity ^0.8.0; import '@openzeppelin/contracts/utils/Address.sol'; import '@mimic-fi/v2-strategies/contracts/IStrategy.sol'; /** * @title StrategyLib * @dev Library used to delegate-call to strategy and decode return data correctly */ library StrategyLib { /** * @dev Delegate-calls a claim to a strategy and decodes de expected data * IMPORTANT! This helper method does not check any of the given params, these should be checked beforehand. */ function claim(address strategy, bytes memory data) internal returns (address[] memory, uint256[] memory) { bytes memory claimData = abi.encodeWithSelector(IStrategy.claim.selector, data); // solhint-disable-next-line avoid-low-level-calls (bool success, bytes memory returndata) = strategy.delegatecall(claimData); Address.verifyCallResult(success, returndata, 'CLAIM_CALL_REVERTED'); return abi.decode(returndata, (address[], uint256[])); } /** * @dev Delegate-calls a join to a strategy and decodes de expected data * IMPORTANT! This helper method does not check any of the given params, these should be checked beforehand. */ function join( address strategy, address[] memory tokensIn, uint256[] memory amountsIn, uint256 slippage, bytes memory data ) internal returns (address[] memory tokensOut, uint256[] memory amountsOut, uint256 value) { bytes memory joinData = abi.encodeWithSelector(IStrategy.join.selector, tokensIn, amountsIn, slippage, data); // solhint-disable-next-line avoid-low-level-calls (bool success, bytes memory returndata) = strategy.delegatecall(joinData); Address.verifyCallResult(success, returndata, 'JOIN_CALL_REVERTED'); return abi.decode(returndata, (address[], uint256[], uint256)); } /** * @dev Delegate-calls a exit to a strategy and decodes de expected data * IMPORTANT! This helper method does not check any of the given params, these should be checked beforehand. */ function exit( address strategy, address[] memory tokensIn, uint256[] memory amountsIn, uint256 slippage, bytes memory data ) internal returns (address[] memory tokensOut, uint256[] memory amountsOut, uint256 value) { bytes memory exitData = abi.encodeWithSelector(IStrategy.exit.selector, tokensIn, amountsIn, slippage, data); // solhint-disable-next-line avoid-low-level-calls (bool success, bytes memory returndata) = strategy.delegatecall(exitData); Address.verifyCallResult(success, returndata, 'EXIT_CALL_REVERTED'); return abi.decode(returndata, (address[], uint256[], uint256)); } }
// SPDX-License-Identifier: GPL-3.0-or-later // This program is free software: you can redistribute it and/or modify // it under the terms of the GNU General Public License as published by // the Free Software Foundation, either version 3 of the License, or // (at your option) any later version. // This program is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // You should have received a copy of the GNU General Public License // along with this program. If not, see <http://www.gnu.org/licenses/>. pragma solidity ^0.8.0; import '@openzeppelin/contracts/utils/Address.sol'; import '@mimic-fi/v2-swap-connector/contracts/ISwapConnector.sol'; /** * @title SwapConnectorLib * @dev Library used to delegate-call swaps and decode return data correctly */ library SwapConnectorLib { /** * @dev Delegate-calls a swap to the swap connector and decodes de expected data * IMPORTANT! This helper method does not check any of the given params, these should be checked beforehand. */ function swap( address connector, uint8 source, address tokenIn, address tokenOut, uint256 amountIn, uint256 minAmountOut, bytes memory data ) internal returns (uint256 amountOut) { bytes memory swapData = abi.encodeWithSelector( ISwapConnector.swap.selector, source, tokenIn, tokenOut, amountIn, minAmountOut, data ); // solhint-disable-next-line avoid-low-level-calls (bool success, bytes memory returndata) = connector.delegatecall(swapData); Address.verifyCallResult(success, returndata, 'SWAP_CALL_REVERTED'); return abi.decode(returndata, (uint256)); } }
// SPDX-License-Identifier: GPL-3.0-or-later // This program is free software: you can redistribute it and/or modify // it under the terms of the GNU General Public License as published by // the Free Software Foundation, either version 3 of the License, or // (at your option) any later version. // This program is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // You should have received a copy of the GNU General Public License // along with this program. If not, see <http://www.gnu.org/licenses/>. pragma solidity ^0.8.0; import '@mimic-fi/v2-helpers/contracts/auth/IAuthorizer.sol'; import '@mimic-fi/v2-price-oracle/contracts/feeds/IPriceFeedProvider.sol'; import '@mimic-fi/v2-registry/contracts/implementations/IImplementation.sol'; /** * @title ISmartVault * @dev Mimic Smart Vault interface to manage assets. It must support also `IImplementation` and `IAuthorizer` */ interface ISmartVault is IPriceFeedProvider, IImplementation, IAuthorizer { enum SwapLimit { Slippage, MinAmountOut } enum BridgeLimit { Slippage, MinAmountOut } /** * @dev Emitted every time a new strategy is set for the Smart Vault */ event StrategySet(address indexed strategy, bool allowed); /** * @dev Emitted every time a new price oracle is set for the Smart Vault */ event PriceOracleSet(address indexed priceOracle); /** * @dev Emitted every time a new swap connector is set for the Smart Vault */ event SwapConnectorSet(address indexed swapConnector); /** * @dev Emitted every time a new bridge connector is set for the Smart Vault */ event BridgeConnectorSet(address indexed bridgeConnector); /** * @dev Emitted every time a new fee collector is set */ event FeeCollectorSet(address indexed feeCollector); /** * @dev Emitted every time the withdraw fee percentage is set */ event WithdrawFeeSet(uint256 pct, uint256 cap, address token, uint256 period); /** * @dev Emitted every time the performance fee percentage is set */ event PerformanceFeeSet(uint256 pct, uint256 cap, address token, uint256 period); /** * @dev Emitted every time the swap fee percentage is set */ event SwapFeeSet(uint256 pct, uint256 cap, address token, uint256 period); /** * @dev Emitted every time the bridge fee percentage is set */ event BridgeFeeSet(uint256 pct, uint256 cap, address token, uint256 period); /** * @dev Emitted every time `call` is called */ event Call(address indexed target, bytes callData, uint256 value, bytes result, bytes data); /** * @dev Emitted every time `collect` is called */ event Collect(address indexed token, address indexed from, uint256 collected, bytes data); /** * @dev Emitted every time `withdraw` is called */ event Withdraw(address indexed token, address indexed recipient, uint256 withdrawn, uint256 fee, bytes data); /** * @dev Emitted every time `wrap` is called */ event Wrap(uint256 amount, uint256 wrapped, bytes data); /** * @dev Emitted every time `unwrap` is called */ event Unwrap(uint256 amount, uint256 unwrapped, bytes data); /** * @dev Emitted every time `claim` is called */ event Claim(address indexed strategy, address[] tokens, uint256[] amounts, bytes data); /** * @dev Emitted every time `join` is called */ event Join( address indexed strategy, address[] tokensIn, uint256[] amountsIn, address[] tokensOut, uint256[] amountsOut, uint256 value, uint256 slippage, bytes data ); /** * @dev Emitted every time `exit` is called */ event Exit( address indexed strategy, address[] tokensIn, uint256[] amountsIn, address[] tokensOut, uint256[] amountsOut, uint256 value, uint256[] fees, uint256 slippage, bytes data ); /** * @dev Emitted every time `swap` is called */ event Swap( uint8 indexed source, address indexed tokenIn, address indexed tokenOut, uint256 amountIn, uint256 amountOut, uint256 minAmountOut, uint256 fee, bytes data ); /** * @dev Emitted every time `bridge` is called */ event Bridge( uint8 indexed source, uint256 indexed chainId, address indexed token, uint256 amountIn, uint256 minAmountOut, uint256 fee, address recipient, bytes data ); /** * @dev Tells a strategy is allowed or not * @param strategy Address of the strategy being queried */ function isStrategyAllowed(address strategy) external view returns (bool); /** * @dev Tells the invested value for a strategy * @param strategy Address of the strategy querying the invested value of */ function investedValue(address strategy) external view returns (uint256); /** * @dev Tells the last value accrued for a strategy. Note this value can be outdated. * @param strategy Address of the strategy querying the last value of */ function lastValue(address strategy) external view returns (uint256); /** * @dev Tells the price oracle associated to a Smart Vault */ function priceOracle() external view returns (address); /** * @dev Tells the swap connector associated to a Smart Vault */ function swapConnector() external view returns (address); /** * @dev Tells the bridge connector associated to a Smart Vault */ function bridgeConnector() external view returns (address); /** * @dev Tells the address where fees will be deposited */ function feeCollector() external view returns (address); /** * @dev Tells the withdraw fee configuration */ function withdrawFee() external view returns (uint256 pct, uint256 cap, address token, uint256 period, uint256 totalCharged, uint256 nextResetTime); /** * @dev Tells the performance fee configuration */ function performanceFee() external view returns (uint256 pct, uint256 cap, address token, uint256 period, uint256 totalCharged, uint256 nextResetTime); /** * @dev Tells the swap fee configuration */ function swapFee() external view returns (uint256 pct, uint256 cap, address token, uint256 period, uint256 totalCharged, uint256 nextResetTime); /** * @dev Tells the bridge fee configuration */ function bridgeFee() external view returns (uint256 pct, uint256 cap, address token, uint256 period, uint256 totalCharged, uint256 nextResetTime); /** * @dev Tells the address of the wrapped native token */ function wrappedNativeToken() external view returns (address); /** * @dev Sets a new strategy as allowed or not for a Smart Vault * @param strategy Address of the strategy to be set * @param allowed Whether the strategy is allowed or not */ function setStrategy(address strategy, bool allowed) external; /** * @dev Sets a new price oracle to a Smart Vault * @param newPriceOracle Address of the new price oracle to be set */ function setPriceOracle(address newPriceOracle) external; /** * @dev Sets a new swap connector to a Smart Vault * @param newSwapConnector Address of the new swap connector to be set */ function setSwapConnector(address newSwapConnector) external; /** * @dev Sets a new bridge connector to a Smart Vault * @param newBridgeConnector Address of the new bridge connector to be set */ function setBridgeConnector(address newBridgeConnector) external; /** * @dev Sets a new fee collector * @param newFeeCollector Address of the new fee collector to be set */ function setFeeCollector(address newFeeCollector) external; /** * @dev Sets a new withdraw fee configuration * @param pct Withdraw fee percentage to be set * @param cap New maximum amount of withdraw fees to be charged per period * @param token Address of the token cap to be set * @param period New cap period length in seconds for the withdraw fee */ function setWithdrawFee(uint256 pct, uint256 cap, address token, uint256 period) external; /** * @dev Sets a new performance fee configuration * @param pct Performance fee percentage to be set * @param cap New maximum amount of performance fees to be charged per period * @param token Address of the token cap to be set * @param period New cap period length in seconds for the performance fee */ function setPerformanceFee(uint256 pct, uint256 cap, address token, uint256 period) external; /** * @dev Sets a new swap fee configuration * @param pct Swap fee percentage to be set * @param cap New maximum amount of swap fees to be charged per period * @param token Address of the token cap to be set * @param period New cap period length in seconds for the swap fee */ function setSwapFee(uint256 pct, uint256 cap, address token, uint256 period) external; /** * @dev Sets a new bridge fee configuration * @param pct Bridge fee percentage to be set * @param cap New maximum amount of bridge fees to be charged per period * @param token Address of the token cap to be set * @param period New cap period length in seconds for the bridge fee */ function setBridgeFee(uint256 pct, uint256 cap, address token, uint256 period) external; /** * @dev Tells the price of a token (base) in a given quote * @param base Token to rate * @param quote Token used for the price rate */ function getPrice(address base, address quote) external view returns (uint256); /** * @dev Execute an arbitrary call from a Smart Vault * @param target Address where the call will be sent * @param callData Calldata to be used for the call * @param value Value in wei that will be attached to the call * @param data Extra data that may enable or not different behaviors depending on the implementation * @return result Call response if it was successful, otherwise it reverts */ function call(address target, bytes memory callData, uint256 value, bytes memory data) external returns (bytes memory result); /** * @dev Collect tokens from a sender to a Smart Vault * @param token Address of the token to be collected * @param from Address where the tokens will be transfer from * @param amount Amount of tokens to be transferred * @param data Extra data that may enable or not different behaviors depending on the implementation * @return collected Amount of tokens assigned to the Smart Vault */ function collect(address token, address from, uint256 amount, bytes memory data) external returns (uint256 collected); /** * @dev Withdraw tokens to an external account * @param token Address of the token to be withdrawn * @param amount Amount of tokens to withdraw * @param recipient Address where the tokens will be transferred to * @param data Extra data that may enable or not different behaviors depending on the implementation * @return withdrawn Amount of tokens transferred to the recipient address */ function withdraw(address token, uint256 amount, address recipient, bytes memory data) external returns (uint256 withdrawn); /** * @dev Wrap an amount of native tokens to the wrapped ERC20 version of it * @param amount Amount of native tokens to be wrapped * @param data Extra data that may enable or not different behaviors depending on the implementation * @return wrapped Amount of tokens wrapped */ function wrap(uint256 amount, bytes memory data) external returns (uint256 wrapped); /** * @dev Unwrap an amount of wrapped native tokens * @param amount Amount of wrapped native tokens to unwrapped * @param data Extra data that may enable or not different behaviors depending on the implementation * @return unwrapped Amount of tokens unwrapped */ function unwrap(uint256 amount, bytes memory data) external returns (uint256 unwrapped); /** * @dev Claim strategy rewards * @param strategy Address of the strategy to claim rewards * @param data Extra data that may enable or not different behaviors depending on the implementation * @return tokens Addresses of the tokens received as rewards * @return amounts Amounts of the tokens received as rewards */ function claim(address strategy, bytes memory data) external returns (address[] memory tokens, uint256[] memory amounts); /** * @dev Join a strategy with an amount of tokens * @param strategy Address of the strategy to join * @param tokensIn List of token addresses to join with * @param amountsIn List of token amounts to join with * @param slippage Slippage that will be used to compute the join * @param data Extra data that may enable or not different behaviors depending on the implementation * @return tokensOut List of token addresses received after the join * @return amountsOut List of token amounts received after the join */ function join( address strategy, address[] memory tokensIn, uint256[] memory amountsIn, uint256 slippage, bytes memory data ) external returns (address[] memory tokensOut, uint256[] memory amountsOut); /** * @dev Exit a strategy * @param strategy Address of the strategy to exit * @param tokensIn List of token addresses to exit with * @param amountsIn List of token amounts to exit with * @param slippage Slippage that will be used to compute the exit * @param data Extra data that may enable or not different behaviors depending on the implementation * @return tokensOut List of token addresses received after the exit * @return amountsOut List of token amounts received after the exit */ function exit( address strategy, address[] memory tokensIn, uint256[] memory amountsIn, uint256 slippage, bytes memory data ) external returns (address[] memory tokensOut, uint256[] memory amountsOut); /** * @dev Swaps two tokens * @param source Source to request the swap. It depends on the Swap Connector attached to a Smart Vault. * @param tokenIn Token being sent * @param tokenOut Token being received * @param amountIn Amount of tokenIn being swapped * @param limitType Swap limit to be applied: slippage or min amount out * @param limitAmount Amount of the swap limit to be applied depending on limitType * @param data Extra data that may enable or not different behaviors depending on the implementation * @return amountOut Received amount of tokens out */ function swap( uint8 source, address tokenIn, address tokenOut, uint256 amountIn, SwapLimit limitType, uint256 limitAmount, bytes memory data ) external returns (uint256 amountOut); /** * @dev Bridge assets to another chain * @param source Source to request the bridge. It depends on the Bridge Connector attached to a Smart Vault. * @param chainId ID of the destination chain * @param token Address of the token to be bridged * @param amount Amount of tokens to be bridged * @param limitType Swap limit to be applied: slippage or min amount out * @param limitAmount Amount of the swap limit to be applied depending on limitType * @param recipient Address that will receive the tokens on the destination chain * @param data Extra data that may enable or not different behaviors depending on the implementation * @return bridged Amount requested to be bridged after fees */ function bridge( uint8 source, uint256 chainId, address token, uint256 amount, BridgeLimit limitType, uint256 limitAmount, address recipient, bytes memory data ) external returns (uint256 bridged); }
// SPDX-License-Identifier: GPL-3.0-or-later // This program is free software: you can redistribute it and/or modify // it under the terms of the GNU General Public License as published by // the Free Software Foundation, either version 3 of the License, or // (at your option) any later version. // This program is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // You should have received a copy of the GNU General Public License // along with this program. If not, see <http://www.gnu.org/licenses/>. pragma solidity >=0.8.0; import '@mimic-fi/v2-registry/contracts/implementations/IImplementation.sol'; /** * @title ISmartVaultsFactory * @dev Smart Vaults Factory interface, it must follow the IImplementation interface. */ interface ISmartVaultsFactory is IImplementation { /** * @dev Emitted every time a new Smart Vault instance is created */ event Created(address indexed implementation, address indexed instance, bytes initializeResult); /** * @dev Tells the implementation associated to a contract instance * @param instance Address of the instance to request it's implementation */ function implementationOf(address instance) external view returns (address); /** * @dev Creates a new Smart Vault pointing to a registered implementation * @param salt Salt bytes to derivate the address of the new instance * @param implementation Address of the implementation to be instanced * @param initializeData Arbitrary data to be sent after deployment * @return instance Address of the new instance created */ function create(bytes32 salt, address implementation, bytes memory initializeData) external returns (address); }
// SPDX-License-Identifier: GPL-3.0-or-later // This program is free software: you can redistribute it and/or modify // it under the terms of the GNU General Public License as published by // the Free Software Foundation, either version 3 of the License, or // (at your option) any later version. // This program is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // You should have received a copy of the GNU General Public License // along with this program. If not, see <http://www.gnu.org/licenses/>. pragma solidity ^0.8.0; import '@openzeppelin/contracts/proxy/Clones.sol'; import '@openzeppelin/contracts/utils/Address.sol'; import '@mimic-fi/v2-helpers/contracts/auth/Authorizer.sol'; import '@mimic-fi/v2-registry/contracts/registry/IRegistry.sol'; import '@mimic-fi/v2-registry/contracts/implementations/BaseImplementation.sol'; import './ISmartVaultsFactory.sol'; /** * @title SmartVaultsFactory * @dev */ contract SmartVaultsFactory is ISmartVaultsFactory, BaseImplementation { using Address for address; // Smart Vaults Factory namespace bytes32 public constant override NAMESPACE = keccak256('SMART_VAULTS_FACTORY'); // Namespace to use by this deployer to fetch ISmartVault implementations from the Mimic Registry bytes32 private constant SMART_VAULT_NAMESPACE = keccak256('SMART_VAULT'); // List of instances' implementations indexed by instance address mapping (address => address) public override implementationOf; /** * @dev Creates a new Smart Vaults Factory implementation * @param registry Address of the Mimic Registry to be referenced */ constructor(address registry) BaseImplementation(registry) { // solhint-disable-previous-line no-empty-blocks } /** * @dev Creates a new Smart Vault pointing to a registered implementation using CREATE2 * @param salt Salt bytes to derivate the address of the new instance * @param implementation Address of the implementation to be instanced. It must be registered and not deprecated. * @param initializeData Arbitrary data to be sent after deployment. It can be used to initialize the new instance. * @return instance Address of the new instance created */ function create(bytes32 salt, address implementation, bytes memory initializeData) external override returns (address instance) { require(implementation != address(0), 'IMPLEMENTATION_ADDRESS_ZERO'); require(IImplementation(implementation).NAMESPACE() == SMART_VAULT_NAMESPACE, 'BAD_IMPLEMENTATION_NAMESPACE'); require(IRegistry(registry).isActive(SMART_VAULT_NAMESPACE, implementation), 'BAD_SMART_VAULT_IMPLEMENTATION'); bytes32 senderSalt = keccak256(abi.encodePacked(msg.sender, salt)); instance = Clones.cloneDeterministic(address(implementation), senderSalt); implementationOf[instance] = implementation; bytes memory result = initializeData.length == 0 ? new bytes(0) : instance.functionCall(initializeData, 'SMART_VAULT_INIT_FAILED'); emit Created(implementation, instance, result); } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import '@openzeppelin/contracts/token/ERC20/IERC20.sol'; import '@mimic-fi/v2-bridge-connector/contracts/IBridgeConnector.sol'; import '@mimic-fi/v2-registry/contracts/implementations/BaseImplementation.sol'; import '../samples/BridgeMock.sol'; contract BridgeConnectorMock is IBridgeConnector, BaseImplementation { bytes32 public constant override NAMESPACE = keccak256('BRIDGE_CONNECTOR'); BridgeMock public immutable bridgeMock; constructor(address registry) BaseImplementation(registry) { bridgeMock = new BridgeMock(); } function bridge( uint8, /* source */ uint256, /* chainId */ address token, uint256 amountIn, uint256 minAmountOut, address recipient, bytes memory data ) external override { IERC20(token).approve(address(bridgeMock), amountIn); return bridgeMock.bridge(token, amountIn, minAmountOut, recipient, data); } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import '@mimic-fi/v2-helpers/contracts/math/FixedPoint.sol'; import '@mimic-fi/v2-price-oracle/contracts/oracle/IPriceOracle.sol'; import '@mimic-fi/v2-registry/contracts/implementations/BaseImplementation.sol'; contract PriceOracleMock is IPriceOracle, BaseImplementation { bytes32 public constant override NAMESPACE = keccak256('PRICE_ORACLE'); struct Feed { bool set; uint256 rate; } mapping (address => mapping (address => Feed)) public mockedFeeds; constructor(address registry) BaseImplementation(registry) { // solhint-disable-previous-line no-empty-blocks } function mockRate(address base, address quote, uint256 newMockedRate) external { Feed storage feed = mockedFeeds[base][quote]; feed.set = true; feed.rate = newMockedRate; } function getPrice(address, address base, address quote) external view override returns (uint256) { if (base == quote) return FixedPoint.ONE; Feed storage feed = mockedFeeds[base][quote]; require(feed.set, 'PRICE_ORACLE_FEED_NOT_SET'); return feed.rate; } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import '@openzeppelin/contracts/token/ERC20/IERC20.sol'; import '@mimic-fi/v2-helpers/contracts/math/FixedPoint.sol'; import '@mimic-fi/v2-strategies/contracts/IStrategy.sol'; import '@mimic-fi/v2-registry/contracts/implementations/BaseImplementation.sol'; import '../samples/TokenMock.sol'; contract StrategyMock is IStrategy, BaseImplementation { using FixedPoint for uint256; bytes32 public constant override NAMESPACE = keccak256('STRATEGY'); address public immutable lpt; address public immutable token; address public immutable rewardToken; event Claimed(bytes data); event Joined(address[] tokensIn, uint256[] amountsIn, uint256 slippage, bytes data); event Exited(address[] tokensIn, uint256[] amountsIn, uint256 slippage, bytes data); constructor(address registry) BaseImplementation(registry) { lpt = address(new TokenMock('LPT')); token = address(new TokenMock('TKN')); rewardToken = address(new TokenMock('REW')); } function mockGains(address account, uint256 multiplier) external { uint256 balance = IERC20(lpt).balanceOf(account); TokenMock(lpt).mint(account, balance * (multiplier - 1)); } function mockLosses(address account, uint256 divisor) external { uint256 balance = IERC20(lpt).balanceOf(account); TokenMock(lpt).burn(account, balance / divisor); } function joinTokens() public view override returns (address[] memory tokens) { tokens = new address[](1); tokens[0] = token; } function exitTokens() public view override returns (address[] memory tokens) { tokens = new address[](1); tokens[0] = lpt; } function valueRate() public pure override returns (uint256) { return FixedPoint.ONE; } function lastValue(address account) public view override returns (uint256) { return IERC20(lpt).balanceOf(account); } function claim(bytes memory data) external override returns (address[] memory tokens, uint256[] memory amounts) { uint256 amount = abi.decode(data, (uint256)); TokenMock(rewardToken).mint(address(this), amount); tokens = new address[](1); tokens[0] = rewardToken; amounts = new uint256[](1); amounts[0] = amount; emit Claimed(data); } function join(address[] memory tokensIn, uint256[] memory amountsIn, uint256 slippage, bytes memory data) external override returns (address[] memory tokensOut, uint256[] memory amountsOut, uint256 value) { require(tokensIn.length == 1, 'STRATEGY_INVALID_TOKENS_IN_LEN'); require(amountsIn.length == 1, 'STRATEGY_INVALID_AMOUNTS_IN_LEN'); require(tokensIn[0] == token, 'STRATEGY_INVALID_JOIN_TOKEN'); tokensOut = exitTokens(); amountsOut = new uint256[](1); amountsOut[0] = amountsIn[0]; TokenMock(token).burn(address(this), amountsIn[0]); TokenMock(lpt).mint(address(this), amountsOut[0]); value = amountsOut[0].mulDown(valueRate()); emit Joined(tokensIn, amountsIn, slippage, data); } function exit(address[] memory tokensIn, uint256[] memory amountsIn, uint256 slippage, bytes memory data) external override returns (address[] memory tokensOut, uint256[] memory amountsOut, uint256 value) { require(tokensIn.length == 1, 'STRATEGY_INVALID_TOKENS_IN_LEN'); require(amountsIn.length == 1, 'STRATEGY_INVALID_AMOUNTS_IN_LEN'); require(tokensIn[0] == lpt, 'STRATEGY_INVALID_EXIT_TOKEN'); tokensOut = joinTokens(); amountsOut = new uint256[](1); amountsOut[0] = amountsIn[0]; TokenMock(lpt).burn(address(this), amountsIn[0]); TokenMock(token).mint(address(this), amountsOut[0]); value = amountsIn[0].divUp(valueRate()); emit Exited(tokensIn, amountsIn, slippage, data); } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import '@openzeppelin/contracts/token/ERC20/IERC20.sol'; import '@mimic-fi/v2-swap-connector/contracts/ISwapConnector.sol'; import '@mimic-fi/v2-registry/contracts/implementations/BaseImplementation.sol'; import '../samples/DexMock.sol'; contract SwapConnectorMock is ISwapConnector, BaseImplementation { bytes32 public constant override NAMESPACE = keccak256('SWAP_CONNECTOR'); DexMock public immutable dex; constructor(address registry) BaseImplementation(registry) { dex = new DexMock(); } function mockRate(uint256 newRate) external { dex.mockRate(newRate); } function swap( uint8, /* source */ address tokenIn, address tokenOut, uint256 amountIn, uint256 minAmountOut, bytes memory data ) external override returns (uint256 amountOut) { IERC20(tokenIn).approve(address(dex), amountIn); return dex.swap(tokenIn, tokenOut, amountIn, minAmountOut, data); } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import '@openzeppelin/contracts/token/ERC20/IERC20.sol'; contract BridgeMock { function bridge(address token, uint256 amount, uint256, address, bytes memory) external { IERC20(token).transferFrom(msg.sender, address(this), amount); } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import '@openzeppelin/contracts/token/ERC20/IERC20.sol'; import '@mimic-fi/v2-helpers/contracts/math/FixedPoint.sol'; contract DexMock { using FixedPoint for uint256; uint256 public mockedRate; constructor() { mockedRate = FixedPoint.ONE; } function mockRate(uint256 newRate) external { mockedRate = newRate; } function swap(address tokenIn, address tokenOut, uint256 amountIn, uint256, bytes memory) external returns (uint256 amountOut) { IERC20(tokenIn).transferFrom(msg.sender, address(this), amountIn); amountOut = amountIn.mulDown(mockedRate); IERC20(tokenOut).transfer(msg.sender, amountOut); } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import '@openzeppelin/contracts/token/ERC20/ERC20.sol'; contract TokenMock is ERC20 { constructor(string memory symbol) ERC20(symbol, symbol) { // solhint-disable-previous-line no-empty-blocks } function mint(address account, uint256 amount) external { _mint(account, amount); } function burn(address account, uint256 amount) external { _burn(account, amount); } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; import '@mimic-fi/v2-helpers/contracts/utils/IWrappedNativeToken.sol'; contract WrappedNativeTokenMock is IWrappedNativeToken { uint8 public decimals = 18; string public name = 'Wrapped Native Token'; string public symbol = 'WNT'; event Deposit(address indexed to, uint256 amount); event Withdrawal(address indexed from, uint256 amount); mapping (address => uint256) public override balanceOf; mapping (address => mapping (address => uint256)) public override allowance; receive() external payable { deposit(); } function deposit() public payable override { balanceOf[msg.sender] += msg.value; emit Deposit(msg.sender, msg.value); } function withdraw(uint256 amount) public override { require(balanceOf[msg.sender] >= amount, 'WNT_NOT_ENOUGH_BALANCE'); balanceOf[msg.sender] -= amount; payable(msg.sender).transfer(amount); emit Withdrawal(msg.sender, amount); } function totalSupply() public view override returns (uint256) { return address(this).balance; } function approve(address spender, uint256 amount) public override returns (bool) { allowance[msg.sender][spender] = amount; emit Approval(msg.sender, spender, amount); return true; } function transfer(address to, uint256 amount) public override returns (bool) { return transferFrom(msg.sender, to, amount); } function transferFrom(address from, address to, uint256 amount) public override returns (bool) { require(balanceOf[from] >= amount, 'NOT_ENOUGH_BALANCE'); if (from != msg.sender && allowance[from][msg.sender] != type(uint256).max) { require(allowance[from][msg.sender] >= amount, 'NOT_ENOUGH_ALLOWANCE'); allowance[from][msg.sender] -= amount; } balanceOf[from] -= amount; balanceOf[to] += amount; emit Transfer(from, to, amount); return true; } }
{ "optimizer": { "enabled": true, "runs": 10000 }, "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "devdoc", "userdoc", "metadata", "abi" ] } }, "libraries": {} }
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Multichain Portfolio | 30 Chains
Chain | Token | Portfolio % | Price | Amount | Value |
---|---|---|---|---|---|
BSC | 41.34% | $1 | 3,341.8742 | $3,341.87 | |
BSC | 28.78% | $0.725885 | 3,204.7613 | $2,326.29 | |
BSC | 6.01% | <$0.000001 | 167,787,100,022.06 | $485.67 | |
BSC | 4.99% | $0.999964 | 403.5248 | $403.51 | |
BSC | 0.88% | <$0.000001 | 45,062,732,050.1806 | $71.15 | |
BSC | 0.84% | $636.18 | 0.1063 | $67.6 | |
BSC | 0.83% | $0.009129 | 7,383.4277 | $67.4 | |
BSC | 0.75% | $1 | 60.2752 | $60.34 | |
BSC | 0.68% | $638.31 | 0.0857 | $54.68 | |
BSC | 0.30% | <$0.000001 | 13,702,650,818.1027 | $24.58 | |
BSC | 0.26% | $0.001836 | 11,312.8754 | $20.77 | |
BSC | 0.23% | <$0.000001 | 2,720,244,602.9176 | $18.74 | |
BSC | 0.23% | <$0.000001 | 3,132,832,110.1866 | $18.55 | |
BSC | 0.12% | <$0.000001 | 20,523,554.2887 | $9.44 | |
BSC | 0.07% | $0.000001 | 6,673,742.3325 | $5.45 | |
BSC | 0.02% | $1 | 1.9598 | $1.96 | |
BSC | 0.01% | $0.000002 | 501,254.6422 | $0.9415 | |
BSC | 0.01% | $0.020896 | 40.9448 | $0.8555 | |
BSC | <0.01% | $0.049715 | 15 | $0.7457 | |
BSC | <0.01% | $3.79 | 0.0873 | $0.3307 | |
BSC | <0.01% | $0.000033 | 9,635.2093 | $0.3174 | |
BSC | <0.01% | $0.259274 | 0.8043 | $0.2085 | |
BSC | <0.01% | $0.000324 | 400 | $0.1297 | |
BSC | <0.01% | $2,662 | 0.00004365 | $0.1161 | |
ETH | 7.62% | $0.000802 | 768,091.2557 | $615.63 | |
ETH | 1.67% | $2,668.06 | 0.0506 | $134.9 | |
ETH | 1.22% | $0.061785 | 1,595.3708 | $98.57 | |
ETH | 0.26% | $0.006455 | 3,260.4168 | $21.05 | |
ETH | 0.26% | $0.031114 | 675.5485 | $21.02 | |
ETH | 0.09% | $19.11 | 0.36 | $6.88 | |
ETH | 0.05% | $2,668.06 | 0.00153918 | $4.11 | |
ETH | 0.03% | $1 | 2.6928 | $2.69 | |
ETH | 0.01% | $34.96 | 0.0339 | $1.19 | |
ETH | <0.01% | $0.000145 | 3,477.25 | $0.5057 | |
ETH | <0.01% | $0.040378 | 10 | $0.4037 | |
AVAX | 1.60% | $0.999985 | 129.5214 | $129.52 | |
AVAX | 0.01% | $2,658.5 | 0.00042748 | $1.14 | |
AVAX | <0.01% | $26.14 | 0.00482655 | $0.1261 | |
POL | 0.21% | $0.316089 | 53.79 | $17 | |
POL | 0.11% | <$0.000001 | 582,265,407.032 | $9.26 | |
POL | 0.08% | $0.002714 | 2,528.2754 | $6.86 | |
POL | 0.03% | $1 | 2.4514 | $2.45 | |
POL | <0.01% | $1 | 0.7039 | $0.7038 | |
FTM | 0.26% | $0.00209 | 9,995.767 | $20.9 | |
FTM | 0.06% | $0.462389 | 10 | $4.62 | |
FTM | 0.03% | $0.4589 | 5.15 | $2.36 | |
ARB | <0.01% | $0.999936 | 0.1952 | $0.1951 | |
MANTLE | <0.01% | $1.04 | 0.00013 | $0.000135 |
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A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.