From 296ea1c5d92db35c599147765498b6157260fdc6 Mon Sep 17 00:00:00 2001 From: Brechtpd Date: Wed, 17 Feb 2021 23:21:50 +0100 Subject: [PATCH 01/15] [protocol 3.6] POC Flash deposits --- .../aux/access/LoopringIOExchangeOwner.sol | 46 +++++++++++++++- .../contracts/core/iface/ExchangeData.sol | 3 ++ .../contracts/core/iface/IExchangeV3.sol | 27 ++++++++++ .../contracts/core/impl/ExchangeV3.sol | 40 +++++++++++++- .../impl/libexchange/ExchangeDeposits.sol | 52 +++++++++++++----- .../loopring_v3/contracts/test/TestVault.sol | 54 +++++++++++++++++++ 6 files changed, 208 insertions(+), 14 deletions(-) create mode 100644 packages/loopring_v3/contracts/test/TestVault.sol diff --git a/packages/loopring_v3/contracts/aux/access/LoopringIOExchangeOwner.sol b/packages/loopring_v3/contracts/aux/access/LoopringIOExchangeOwner.sol index d4d895a6b..12ebcc746 100644 --- a/packages/loopring_v3/contracts/aux/access/LoopringIOExchangeOwner.sol +++ b/packages/loopring_v3/contracts/aux/access/LoopringIOExchangeOwner.sol @@ -52,6 +52,25 @@ contract LoopringIOExchangeOwner is SelectorBasedAccessManager, ChiDiscount, ERC address[] receivers; } + struct FlashDepositInfo + { + address to; + address token; + uint96 amount; + } + + struct FlashVaultInfo + { + address to; + bytes data; + } + + struct FlashConfig + { + FlashDepositInfo[] deposits; + FlashVaultInfo[] vaults; + } + constructor( address _exchange, address _chiToken @@ -101,7 +120,8 @@ contract LoopringIOExchangeOwner is SelectorBasedAccessManager, ChiDiscount, ERC bool isDataCompressed, bytes calldata data, CallbackConfig calldata config, - ChiConfig calldata chiConfig + ChiConfig calldata chiConfig, + FlashConfig calldata flashConfig ) external discountCHI(chiToken, chiConfig) @@ -135,7 +155,31 @@ contract LoopringIOExchangeOwner is SelectorBasedAccessManager, ChiDiscount, ERC // Process the callback logic. _beforeBlockSubmission(blocks, config); + // Do flash deposits + for (uint i = 0; i < flashConfig.deposits.length; i++) { + IExchangeV3(target).flashDeposit( + flashConfig.deposits[i].to, + flashConfig.deposits[i].token, + flashConfig.deposits[i].amount + ); + } + target.fastCallAndVerify(gasleft(), 0, decompressed); + + // Do vault logic + for (uint i = 0; i < flashConfig.vaults.length; i++) { + require(flashConfig.vaults[i].to != target, "EXCHANGE_CANNOT_BE_VAULT"); + (bool success, ) = flashConfig.vaults[i].to.call(flashConfig.vaults[i].data); + require(success, "VAULT_CALL_FAILED"); + } + + // Make sure flash deposits were repaid + for (uint i = 0; i < flashConfig.deposits.length; i++) { + require( + IExchangeV3(target).getAmountFlashDeposited(flashConfig.deposits[i].token) == 0, + "FLASH_DEPOSIT_NOT REPAID" + ); + } } function _beforeBlockSubmission( diff --git a/packages/loopring_v3/contracts/core/iface/ExchangeData.sol b/packages/loopring_v3/contracts/core/iface/ExchangeData.sol index b262d07a0..46e9f13cd 100644 --- a/packages/loopring_v3/contracts/core/iface/ExchangeData.sol +++ b/packages/loopring_v3/contracts/core/iface/ExchangeData.sol @@ -224,5 +224,8 @@ library ExchangeData // Last time the protocol fee was withdrawn for a specific token mapping (address => uint) protocolFeeLastWithdrawnTime; + + // Flash deposits + mapping (address => uint96) amountFlashDeposited; } } diff --git a/packages/loopring_v3/contracts/core/iface/IExchangeV3.sol b/packages/loopring_v3/contracts/core/iface/IExchangeV3.sol index c9d7054f5..cbcbc8443 100644 --- a/packages/loopring_v3/contracts/core/iface/IExchangeV3.sol +++ b/packages/loopring_v3/contracts/core/iface/IExchangeV3.sol @@ -343,6 +343,33 @@ abstract contract IExchangeV3 is Claimable view returns (uint96); + + function flashDeposit( + address to, + address tokenAddress, + uint96 amount + ) + external + virtual; + + function repayFlashDeposit( + address from, + address tokenAddress, + uint96 amount, + bytes calldata extraData + ) + external + virtual + payable; + + function getAmountFlashDeposited( + address tokenAddress + ) + external + virtual + view + returns (uint96); + // -- Withdrawals -- /// @dev Submits an onchain request to force withdraw Ether or ERC20 tokens. /// This request always withdraws the full balance. diff --git a/packages/loopring_v3/contracts/core/impl/ExchangeV3.sol b/packages/loopring_v3/contracts/core/impl/ExchangeV3.sol index 7ff06c061..57432c93f 100644 --- a/packages/loopring_v3/contracts/core/impl/ExchangeV3.sol +++ b/packages/loopring_v3/contracts/core/impl/ExchangeV3.sol @@ -366,7 +366,7 @@ contract ExchangeV3 is IExchangeV3, ReentrancyGuard nonReentrant onlyFromUserOrAgent(from) { - state.deposit(from, to, tokenAddress, amount, extraData); + state.deposit(from, to, tokenAddress, amount, extraData, false); } function getPendingDepositAmount( @@ -382,6 +382,44 @@ contract ExchangeV3 is IExchangeV3, ReentrancyGuard return state.pendingDeposits[owner][tokenID].amount; } + function flashDeposit( + address to, + address tokenAddress, + uint96 amount + ) + external + override + nonReentrant + onlyOwner + { + state.deposit(to, to, tokenAddress, amount, new bytes(0), true); + } + + function repayFlashDeposit( + address from, + address tokenAddress, + uint96 amount, + bytes calldata extraData + ) + external + payable + override + nonReentrant + { + state.repayFlashDeposit(from, tokenAddress, amount, extraData); + } + + function getAmountFlashDeposited( + address tokenAddress + ) + external + override + view + returns (uint96) + { + return state.amountFlashDeposited[tokenAddress]; + } + // -- Withdrawals -- function forceWithdraw( diff --git a/packages/loopring_v3/contracts/core/impl/libexchange/ExchangeDeposits.sol b/packages/loopring_v3/contracts/core/impl/libexchange/ExchangeDeposits.sol index 9f1cf27bc..7cd0c66b2 100644 --- a/packages/loopring_v3/contracts/core/impl/libexchange/ExchangeDeposits.sol +++ b/packages/loopring_v3/contracts/core/impl/libexchange/ExchangeDeposits.sol @@ -34,7 +34,8 @@ library ExchangeDeposits address to, address tokenAddress, uint96 amount, // can be zero - bytes memory extraData + bytes memory extraData, + bool flash ) internal // inline call { @@ -46,26 +47,53 @@ library ExchangeDeposits uint16 tokenID = S.getTokenID(tokenAddress); - // Transfer the tokens to this contract - uint96 amountDeposited = S.depositContract.deposit{value: msg.value}( - from, - tokenAddress, - amount, - extraData - ); + uint96 amountDeposited = amount; + if (flash) { + require(msg.value == 0, "INVALID_FLASH_DEPOSIT"); + S.amountFlashDeposited[tokenAddress] = S.amountFlashDeposited[tokenAddress].add(amount); + } else { + // Transfer the tokens to this contract + amountDeposited = S.depositContract.deposit{value: msg.value}( + from, + tokenAddress, + amount, + extraData + ); + + emit DepositRequested( + from, + to, + tokenAddress, + tokenID, + amountDeposited + ); + } // Add the amount to the deposit request and reset the time the operator has to process it ExchangeData.Deposit memory _deposit = S.pendingDeposits[to][tokenID]; _deposit.timestamp = uint64(block.timestamp); _deposit.amount = _deposit.amount.add(amountDeposited); S.pendingDeposits[to][tokenID] = _deposit; + } - emit DepositRequested( + function repayFlashDeposit( + ExchangeData.State storage S, + address from, + address tokenAddress, + uint96 amount, + bytes memory extraData + ) + public + { + // Transfer the tokens to this contract + uint96 amountDeposited = S.depositContract.deposit{value: msg.value}( from, - to, tokenAddress, - tokenID, - amountDeposited + amount, + extraData ); + + // Paid back + S.amountFlashDeposited[tokenAddress] = S.amountFlashDeposited[tokenAddress].sub(amountDeposited); } } diff --git a/packages/loopring_v3/contracts/test/TestVault.sol b/packages/loopring_v3/contracts/test/TestVault.sol new file mode 100644 index 000000000..8cd769847 --- /dev/null +++ b/packages/loopring_v3/contracts/test/TestVault.sol @@ -0,0 +1,54 @@ +// SPDX-License-Identifier: Apache-2.0 +// Copyright 2017 Loopring Technology Limited. +pragma solidity ^0.7.0; + +import "../core/iface/IExchangeV3.sol"; +import "../lib/Claimable.sol"; +import "../lib/Drainable.sol"; +import "../lib/ERC20.sol"; + + +/// @author Brecht Devos - +contract TestVault is Claimable, Drainable { + + function swapAndRepay( + address exchange, + address swapContract, + bytes calldata swapData, + address swapToken, + uint swapAmount, + address repayToken, + uint96 repayAmount + ) + public + { + // Swap + if (swapToken != address(0)) { + ERC20(swapToken).approve(swapContract, swapAmount); + } + (bool success, ) = swapContract.call(swapData); + require(success, "SWAP_FAILED"); + + // Repay + if (repayToken != address(0)) { + IDepositContract depositContract = IExchangeV3(exchange).getDepositContract(); + ERC20(repayToken).approve(address(depositContract), repayAmount); + } + uint repayValue = (repayToken == address(0)) ? repayAmount : 0; + IExchangeV3(exchange).repayFlashDeposit{value: repayValue}( + address(this), + repayToken, + repayAmount, + new bytes(0) + ); + } + + function canDrain(address drainer, address /* token */) + public + override + view + returns (bool) + { + return drainer == owner; + } +} From fdb2b6b59c7bf2ace6908c9e61b84cc00c83dd95 Mon Sep 17 00:00:00 2001 From: Brechtpd Date: Sat, 6 Mar 2021 22:24:12 +0100 Subject: [PATCH 02/15] Improvements --- .../aux/access/LoopringIOExchangeOwner.sol | 64 ++- .../contracts/converters/BaseConverter.sol | 169 ++++++++ .../contracts/core/iface/ExchangeData.sol | 11 +- .../contracts/core/iface/IExchangeV3.sol | 17 +- .../contracts/core/impl/ExchangeV3.sol | 37 +- .../impl/libexchange/ExchangeDeposits.sol | 6 +- .../libtransactions/DepositTransaction.sol | 2 +- packages/loopring_v3/contracts/lib/ERC20.sol | 20 +- .../loopring_v3/contracts/lib/LPERC20.sol | 161 ++++++++ .../loopring_v3/contracts/test/LPERC20.sol | 73 ---- ...TestVault.sol => SinglePhaseConverter.sol} | 8 +- .../contracts/test/TestConverter.sol | 45 +++ .../contracts/test/TestSwapper.sol | 57 +++ packages/loopring_v3/test/testConverter.ts | 370 ++++++++++++++++++ packages/loopring_v3/test/testDebugTools.ts | 4 +- packages/loopring_v3/test/testExchangeUtil.ts | 86 +++- packages/loopring_v3/test/types.ts | 11 + 17 files changed, 975 insertions(+), 166 deletions(-) create mode 100644 packages/loopring_v3/contracts/converters/BaseConverter.sol create mode 100644 packages/loopring_v3/contracts/lib/LPERC20.sol delete mode 100644 packages/loopring_v3/contracts/test/LPERC20.sol rename packages/loopring_v3/contracts/test/{TestVault.sol => SinglePhaseConverter.sol} (91%) create mode 100644 packages/loopring_v3/contracts/test/TestConverter.sol create mode 100644 packages/loopring_v3/contracts/test/TestSwapper.sol create mode 100644 packages/loopring_v3/test/testConverter.ts diff --git a/packages/loopring_v3/contracts/aux/access/LoopringIOExchangeOwner.sol b/packages/loopring_v3/contracts/aux/access/LoopringIOExchangeOwner.sol index 12ebcc746..5d1112850 100644 --- a/packages/loopring_v3/contracts/aux/access/LoopringIOExchangeOwner.sol +++ b/packages/loopring_v3/contracts/aux/access/LoopringIOExchangeOwner.sol @@ -52,25 +52,12 @@ contract LoopringIOExchangeOwner is SelectorBasedAccessManager, ChiDiscount, ERC address[] receivers; } - struct FlashDepositInfo - { - address to; - address token; - uint96 amount; - } - - struct FlashVaultInfo + struct PostBlocksCallbacks { address to; bytes data; } - struct FlashConfig - { - FlashDepositInfo[] deposits; - FlashVaultInfo[] vaults; - } - constructor( address _exchange, address _chiToken @@ -117,20 +104,22 @@ contract LoopringIOExchangeOwner is SelectorBasedAccessManager, ChiDiscount, ERC /// chiConfig.calldataCost shall be set to 16 * msg.data.length or calculated /// perfectly offchain (16 gas for non-zero byte, 4 gas for zero byte). function submitBlocksWithCallbacks( - bool isDataCompressed, - bytes calldata data, - CallbackConfig calldata config, - ChiConfig calldata chiConfig, - FlashConfig calldata flashConfig + bool isDataCompressed, + bytes calldata data, + CallbackConfig calldata config, + ChiConfig calldata chiConfig, + ExchangeData.FlashMint[] calldata flashMints, + PostBlocksCallbacks[] calldata postBlocksCallbacks ) external discountCHI(chiToken, chiConfig) { + IAgentRegistry agentRegistry = IExchangeV3(target).getAgentRegistry(); + if (config.blockCallbacks.length > 0) { require(config.receivers.length > 0, "MISSING_RECEIVERS"); // Make sure the receiver is authorized to approve transactions - IAgentRegistry agentRegistry = IExchangeV3(target).getAgentRegistry(); for (uint i = 0; i < config.receivers.length; i++) { require(agentRegistry.isUniversalAgent(config.receivers[i]), "UNAUTHORIZED_RECEIVER"); } @@ -152,34 +141,27 @@ contract LoopringIOExchangeOwner is SelectorBasedAccessManager, ChiDiscount, ERC // Decode the blocks ExchangeData.Block[] memory blocks = _decodeBlocks(decompressed); - // Process the callback logic. + // Do pre blocks callbacks _beforeBlockSubmission(blocks, config); - // Do flash deposits - for (uint i = 0; i < flashConfig.deposits.length; i++) { - IExchangeV3(target).flashDeposit( - flashConfig.deposits[i].to, - flashConfig.deposits[i].token, - flashConfig.deposits[i].amount - ); - } + // Do flash mints + IExchangeV3(target).flashMint(flashMints); + // Submit blocks target.fastCallAndVerify(gasleft(), 0, decompressed); - // Do vault logic - for (uint i = 0; i < flashConfig.vaults.length; i++) { - require(flashConfig.vaults[i].to != target, "EXCHANGE_CANNOT_BE_VAULT"); - (bool success, ) = flashConfig.vaults[i].to.call(flashConfig.vaults[i].data); - require(success, "VAULT_CALL_FAILED"); + // Do post blocks callbacks + for (uint i = 0; i < postBlocksCallbacks.length; i++) { + require(postBlocksCallbacks[i].to != target, "EXCHANGE_CANNOT_BE_POST_CALLBACK_TARGET"); + require(!agentRegistry.isUniversalAgent(postBlocksCallbacks[i].to), "UNI_AGENT_CANNOT_BE_POST_CALLBACK_TARGET"); + (bool success, bytes memory returnData) = postBlocksCallbacks[i].to.call(postBlocksCallbacks[i].data); + if (!success) { + assembly { revert(add(returnData, 32), mload(returnData)) } + } } - // Make sure flash deposits were repaid - for (uint i = 0; i < flashConfig.deposits.length; i++) { - require( - IExchangeV3(target).getAmountFlashDeposited(flashConfig.deposits[i].token) == 0, - "FLASH_DEPOSIT_NOT REPAID" - ); - } + // Make sure flash mints were repaid + IExchangeV3(target).verifyFlashMintsPaidBack(flashMints); } function _beforeBlockSubmission( diff --git a/packages/loopring_v3/contracts/converters/BaseConverter.sol b/packages/loopring_v3/contracts/converters/BaseConverter.sol new file mode 100644 index 000000000..e09fe207c --- /dev/null +++ b/packages/loopring_v3/contracts/converters/BaseConverter.sol @@ -0,0 +1,169 @@ +// SPDX-License-Identifier: Apache-2.0 +// Copyright 2017 Loopring Technology Limited. +pragma solidity ^0.7.0; + +import "../core/iface/IExchangeV3.sol"; +import "../lib/Claimable.sol"; +import "../lib/Drainable.sol"; +import "../lib/ERC20.sol"; +import "../lib/AddressUtil.sol"; +import "../lib/ERC20SafeTransfer.sol"; +import "../lib/MathUint.sol"; +import "../lib/LPERC20.sol"; + + +/// @author Brecht Devos - +abstract contract BaseConverter is LPERC20, Claimable, Drainable +{ + using AddressUtil for address; + using ERC20SafeTransfer for address; + using MathUint for uint; + + event Deposit (bool success, string reason); + + IExchangeV3 public immutable exchange; + IDepositContract public immutable depositContract; + + address public immutable tokenIn; + address public immutable tokenOut; + + bool public failed; + + modifier onlyFromExchangeOwner() + { + require(msg.sender == exchange.owner(), "UNAUTHORIZED"); + _; + } + + constructor( + IExchangeV3 _exchange, + address _tokenIn, + address _tokenOut, + string memory _name, + string memory _symbol, + uint8 _decimals + ) + LPERC20(_name, _symbol, _decimals) + { + exchange = _exchange; + depositContract = _exchange.getDepositContract(); + tokenIn = _tokenIn; + tokenOut = _tokenOut; + } + + function deposit( + uint96 amountIn, + uint96 minAmountOut, + bytes calldata customData + ) + external + payable + onlyFromExchangeOwner + { + require(totalSupply == 0); + + // Converter specific logic, which can fail + try BaseConverter(this).convertExternal(amountIn, minAmountOut, customData) { + failed = false; + emit Deposit(true, ""); + } catch Error(string memory reason) { + emit Deposit(false, reason); + failed = true; + } catch { + failed = true; + emit Deposit(false, "unknown"); + } + + _mint(address(this), amountIn); + + _repay(address(this), amountIn); + } + + function withdraw( + address from, + address to, + uint96 poolAmount, + uint96 repayAmount + ) + public + { + require(from == msg.sender || from == address(this), "UNAUTHORIZED"); + + address token = failed ? tokenIn : tokenOut; + + uint balance = 0; + if (token == address(0)) { + balance = address(this).balance; + } else { + balance = ERC20(token).balanceOf(address(this)); + } + uint amount = balance.mul(poolAmount) / totalSupply; + + _burn(from, poolAmount); + + if (repayAmount > 0) { + _repay(token, repayAmount); + } + + uint amountToSend = amount.sub(repayAmount); + if (token == address(0)) { + to.sendETHAndVerify(amountToSend, gasleft()); // ETH + } else { + token.safeTransferAndVerify(to, amountToSend); // ERC20 token + } + } + + function convertExternal( + uint96 amountIn, + uint96 minAmountOut, + bytes calldata customData + ) + external + virtual + { + require(msg.sender == address(this), "UNAUTHORIZED"); + convert(amountIn, minAmountOut, customData); + } + + receive() + external + payable + {} + + function _repay( + address token, + uint96 amount + ) + private + { + // Repay + if (token != address(0)) { + ERC20(token).approve(address(depositContract), amount); + } + uint repayValue = (token == address(0)) ? amount : 0; + IExchangeV3(exchange).repayFlashMint{value: repayValue}( + address(this), + token, + amount, + new bytes(0) + ); + } + + function canDrain(address drainer, address /* token */) + public + override + view + returns (bool) + { + return drainer == owner && totalSupply == 0; + } + + // Converer specific logic + function convert( + uint96 amountIn, + uint96 minAmountOut, + bytes calldata customData + ) + internal + virtual; +} diff --git a/packages/loopring_v3/contracts/core/iface/ExchangeData.sol b/packages/loopring_v3/contracts/core/iface/ExchangeData.sol index 46e9f13cd..fd8f4433c 100644 --- a/packages/loopring_v3/contracts/core/iface/ExchangeData.sol +++ b/packages/loopring_v3/contracts/core/iface/ExchangeData.sol @@ -158,6 +158,13 @@ library ExchangeData uint[24] balanceMerkleProof; } + struct FlashMint + { + address to; + address token; + uint96 amount; + } + struct BlockContext { bytes32 DOMAIN_SEPARATOR; @@ -225,7 +232,7 @@ library ExchangeData // Last time the protocol fee was withdrawn for a specific token mapping (address => uint) protocolFeeLastWithdrawnTime; - // Flash deposits - mapping (address => uint96) amountFlashDeposited; + // Flash mints + mapping (address => uint96) amountFlashMinted; } } diff --git a/packages/loopring_v3/contracts/core/iface/IExchangeV3.sol b/packages/loopring_v3/contracts/core/iface/IExchangeV3.sol index cbcbc8443..46831b730 100644 --- a/packages/loopring_v3/contracts/core/iface/IExchangeV3.sol +++ b/packages/loopring_v3/contracts/core/iface/IExchangeV3.sol @@ -344,15 +344,13 @@ abstract contract IExchangeV3 is Claimable returns (uint96); - function flashDeposit( - address to, - address tokenAddress, - uint96 amount + function flashMint( + ExchangeData.FlashMint[] calldata flashMints ) external virtual; - function repayFlashDeposit( + function repayFlashMint( address from, address tokenAddress, uint96 amount, @@ -362,7 +360,7 @@ abstract contract IExchangeV3 is Claimable virtual payable; - function getAmountFlashDeposited( + function getAmountFlashMinted( address tokenAddress ) external @@ -370,6 +368,13 @@ abstract contract IExchangeV3 is Claimable view returns (uint96); + function verifyFlashMintsPaidBack( + ExchangeData.FlashMint[] calldata flashMints + ) + external + virtual + view; + // -- Withdrawals -- /// @dev Submits an onchain request to force withdraw Ether or ERC20 tokens. /// This request always withdraws the full balance. diff --git a/packages/loopring_v3/contracts/core/impl/ExchangeV3.sol b/packages/loopring_v3/contracts/core/impl/ExchangeV3.sol index 57432c93f..6290a738b 100644 --- a/packages/loopring_v3/contracts/core/impl/ExchangeV3.sol +++ b/packages/loopring_v3/contracts/core/impl/ExchangeV3.sol @@ -382,20 +382,27 @@ contract ExchangeV3 is IExchangeV3, ReentrancyGuard return state.pendingDeposits[owner][tokenID].amount; } - function flashDeposit( - address to, - address tokenAddress, - uint96 amount + function flashMint( + ExchangeData.FlashMint[] calldata flashMints ) external override nonReentrant onlyOwner { - state.deposit(to, to, tokenAddress, amount, new bytes(0), true); + for (uint i = 0; i < flashMints.length; i++) { + state.deposit( + flashMints[i].to, + flashMints[i].to, + flashMints[i].token, + flashMints[i].amount, + new bytes(0), + true + ); + } } - function repayFlashDeposit( + function repayFlashMint( address from, address tokenAddress, uint96 amount, @@ -406,10 +413,10 @@ contract ExchangeV3 is IExchangeV3, ReentrancyGuard override nonReentrant { - state.repayFlashDeposit(from, tokenAddress, amount, extraData); + state.repayFlashMint(from, tokenAddress, amount, extraData); } - function getAmountFlashDeposited( + function getAmountFlashMinted( address tokenAddress ) external @@ -417,7 +424,19 @@ contract ExchangeV3 is IExchangeV3, ReentrancyGuard view returns (uint96) { - return state.amountFlashDeposited[tokenAddress]; + return state.amountFlashMinted[tokenAddress]; + } + + function verifyFlashMintsPaidBack( + ExchangeData.FlashMint[] calldata flashMints + ) + external + override + view + { + for (uint i = 0; i < flashMints.length; i++) { + require(state.amountFlashMinted[flashMints[i].token] == 0, "FLASH_MINT_NOT_REPAID"); + } } // -- Withdrawals -- diff --git a/packages/loopring_v3/contracts/core/impl/libexchange/ExchangeDeposits.sol b/packages/loopring_v3/contracts/core/impl/libexchange/ExchangeDeposits.sol index 7cd0c66b2..89e2fe083 100644 --- a/packages/loopring_v3/contracts/core/impl/libexchange/ExchangeDeposits.sol +++ b/packages/loopring_v3/contracts/core/impl/libexchange/ExchangeDeposits.sol @@ -50,7 +50,7 @@ library ExchangeDeposits uint96 amountDeposited = amount; if (flash) { require(msg.value == 0, "INVALID_FLASH_DEPOSIT"); - S.amountFlashDeposited[tokenAddress] = S.amountFlashDeposited[tokenAddress].add(amount); + S.amountFlashMinted[tokenAddress] = S.amountFlashMinted[tokenAddress].add(amount); } else { // Transfer the tokens to this contract amountDeposited = S.depositContract.deposit{value: msg.value}( @@ -76,7 +76,7 @@ library ExchangeDeposits S.pendingDeposits[to][tokenID] = _deposit; } - function repayFlashDeposit( + function repayFlashMint( ExchangeData.State storage S, address from, address tokenAddress, @@ -94,6 +94,6 @@ library ExchangeDeposits ); // Paid back - S.amountFlashDeposited[tokenAddress] = S.amountFlashDeposited[tokenAddress].sub(amountDeposited); + S.amountFlashMinted[tokenAddress] = S.amountFlashMinted[tokenAddress].sub(amountDeposited); } } diff --git a/packages/loopring_v3/contracts/core/impl/libtransactions/DepositTransaction.sol b/packages/loopring_v3/contracts/core/impl/libtransactions/DepositTransaction.sol index 6a87fa6b9..867f315e6 100644 --- a/packages/loopring_v3/contracts/core/impl/libtransactions/DepositTransaction.sol +++ b/packages/loopring_v3/contracts/core/impl/libtransactions/DepositTransaction.sol @@ -49,7 +49,7 @@ library DepositTransaction // This is done to ensure the user can do multiple deposits after each other // without invalidating work done by the exchange owner for previous deposit amounts. - require(pendingDeposit.amount >= deposit.amount, "INVALID_AMOUNT"); + require(pendingDeposit.amount >= deposit.amount, "INVALID_DEPOSIT_AMOUNT"); pendingDeposit.amount = pendingDeposit.amount.sub(deposit.amount); // If the deposit was fully consumed, reset it so the storage is freed up diff --git a/packages/loopring_v3/contracts/lib/ERC20.sol b/packages/loopring_v3/contracts/lib/ERC20.sol index a12ca5145..f8069894a 100644 --- a/packages/loopring_v3/contracts/lib/ERC20.sol +++ b/packages/loopring_v3/contracts/lib/ERC20.sol @@ -6,19 +6,17 @@ pragma solidity ^0.7.0; /// @title ERC20 Token Interface /// @dev see https://github.com/ethereum/EIPs/issues/20 /// @author Daniel Wang - -abstract contract ERC20 +interface ERC20 { function totalSupply() - public - virtual + external view returns (uint); function balanceOf( address who ) - public - virtual + external view returns (uint); @@ -26,8 +24,7 @@ abstract contract ERC20 address owner, address spender ) - public - virtual + external view returns (uint); @@ -35,8 +32,7 @@ abstract contract ERC20 address to, uint value ) - public - virtual + external returns (bool); function transferFrom( @@ -44,15 +40,13 @@ abstract contract ERC20 address to, uint value ) - public - virtual + external returns (bool); function approve( address spender, uint value ) - public - virtual + external returns (bool); } diff --git a/packages/loopring_v3/contracts/lib/LPERC20.sol b/packages/loopring_v3/contracts/lib/LPERC20.sol new file mode 100644 index 000000000..bf4cace43 --- /dev/null +++ b/packages/loopring_v3/contracts/lib/LPERC20.sol @@ -0,0 +1,161 @@ +// SPDX-License-Identifier: Apache-2.0 +// Copyright 2017 Loopring Technology Limited. +pragma solidity ^0.7.0; + +import './ERC20.sol'; +import './MathUint.sol'; +import './SignatureUtil.sol'; +import './EIP712.sol'; + + +contract LPERC20 is ERC20 +{ + using MathUint for uint; + using SignatureUtil for bytes32; + + bytes32 public immutable DOMAIN_SEPARATOR; + + string public name; + string public symbol; + uint8 public immutable decimals; + + uint public override totalSupply; + mapping(address => uint) public override balanceOf; + mapping(address => mapping(address => uint)) public override allowance; + mapping(address => uint) public nonces; + + event Approval(address indexed owner, address indexed spender, uint value); + event Transfer(address indexed from, address indexed to, uint value); + + bytes32 public constant PERMIT_TYPEHASH = keccak256("Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)"); + + constructor( + string memory _name, + string memory _symbol, + uint8 _decimals + ) + { + DOMAIN_SEPARATOR = EIP712.hash(EIP712.Domain("LPERC20", "1.0", address(this))); + + name = _name; + symbol = _symbol; + decimals = _decimals; + } + + function approve( + address spender, + uint value + ) + external + override + returns (bool) + { + _approve(msg.sender, spender, value); + return true; + } + + function transfer( + address to, + uint value + ) + external + override + returns (bool) + { + _transfer(msg.sender, to, value); + return true; + } + + function transferFrom( + address from, + address to, + uint value + ) + external + override + returns (bool) + { + if (msg.sender != address(this) && + allowance[from][msg.sender] != uint(-1)) { + allowance[from][msg.sender] = allowance[from][msg.sender].sub(value); + } + _transfer(from, to, value); + return true; + } + + function _mint( + address to, + uint value + ) + internal + { + totalSupply = totalSupply.add(value); + balanceOf[to] = balanceOf[to].add(value); + emit Transfer(address(0), to, value); + } + + function _burn( + address from, + uint value + ) + internal + { + balanceOf[from] = balanceOf[from].sub(value); + totalSupply = totalSupply.sub(value); + emit Transfer(from, address(0), value); + } + + function permit( + address owner, + address spender, + uint256 value, + uint256 deadline, + bytes calldata signature + ) + external + { + require(deadline >= block.timestamp, 'EXPIRED'); + + bytes32 hash = EIP712.hashPacked( + DOMAIN_SEPARATOR, + keccak256( + abi.encode( + PERMIT_TYPEHASH, + owner, + spender, + value, + nonces[owner]++, + deadline + ) + ) + ); + + require(hash.verifySignature(owner, signature), 'INVALID_SIGNATURE'); + _approve(owner, spender, value); + } + + function _approve( + address owner, + address spender, + uint value + ) + private + { + if (spender != address(this)) { + allowance[owner][spender] = value; + emit Approval(owner, spender, value); + } + } + + function _transfer( + address from, + address to, + uint value + ) + private + { + balanceOf[from] = balanceOf[from].sub(value); + balanceOf[to] = balanceOf[to].add(value); + emit Transfer(from, to, value); + } +} diff --git a/packages/loopring_v3/contracts/test/LPERC20.sol b/packages/loopring_v3/contracts/test/LPERC20.sol deleted file mode 100644 index 82af4f0f0..000000000 --- a/packages/loopring_v3/contracts/test/LPERC20.sol +++ /dev/null @@ -1,73 +0,0 @@ -// SPDX-License-Identifier: Apache-2.0 -// Copyright 2017 Loopring Technology Limited. -pragma solidity ^0.7.0; - -import '../lib/ERC20.sol'; -import '../lib/MathUint.sol'; - -contract LPERC20 is ERC20 { - using MathUint for uint; - - string public constant name = 'Loopring AMM'; - string public constant symbol = 'LLT'; - uint8 public constant decimals = 18; - uint public _totalSupply; - mapping(address => uint) public _balanceOf; - mapping(address => mapping(address => uint)) public _allowance; - - event Approval(address indexed owner, address indexed spender, uint value); - event Transfer(address indexed from, address indexed to, uint value); - - function totalSupply() public virtual view override returns (uint) { - return _totalSupply; - } - - function balanceOf(address owner) public view override virtual returns (uint balance) { - return _balanceOf[owner]; - } - - function allowance(address owner, address spender) public view override returns (uint) { - return _allowance[owner][spender]; - } - - function approve(address spender, uint value) public override returns (bool) { - _approve(msg.sender, spender, value); - return true; - } - - function transfer(address to, uint value) public override returns (bool) { - _transfer(msg.sender, to, value); - return true; - } - - function transferFrom(address from, address to, uint value) public override returns (bool) { - if (_allowance[from][msg.sender] != uint(-1)) { - _allowance[from][msg.sender] = _allowance[from][msg.sender].sub(value); - } - _transfer(from, to, value); - return true; - } - - function _mint(address to, uint value) internal { - _totalSupply = _totalSupply.add(value); - _balanceOf[to] = _balanceOf[to].add(value); - emit Transfer(address(0), to, value); - } - - function _burn(address from, uint value) internal { - _balanceOf[from] = _balanceOf[from].sub(value); - _totalSupply = _totalSupply.sub(value); - emit Transfer(from, address(0), value); - } - - function _approve(address owner, address spender, uint value) private { - _allowance[owner][spender] = value; - emit Approval(owner, spender, value); - } - - function _transfer(address from, address to, uint value) private { - _balanceOf[from] = _balanceOf[from].sub(value); - _balanceOf[to] = _balanceOf[to].add(value); - emit Transfer(from, to, value); - } -} diff --git a/packages/loopring_v3/contracts/test/TestVault.sol b/packages/loopring_v3/contracts/test/SinglePhaseConverter.sol similarity index 91% rename from packages/loopring_v3/contracts/test/TestVault.sol rename to packages/loopring_v3/contracts/test/SinglePhaseConverter.sol index 8cd769847..c3ffd2e54 100644 --- a/packages/loopring_v3/contracts/test/TestVault.sol +++ b/packages/loopring_v3/contracts/test/SinglePhaseConverter.sol @@ -9,8 +9,8 @@ import "../lib/ERC20.sol"; /// @author Brecht Devos - -contract TestVault is Claimable, Drainable { - +contract SinglePhaseConverter is Claimable, Drainable +{ function swapAndRepay( address exchange, address swapContract, @@ -35,7 +35,7 @@ contract TestVault is Claimable, Drainable { ERC20(repayToken).approve(address(depositContract), repayAmount); } uint repayValue = (repayToken == address(0)) ? repayAmount : 0; - IExchangeV3(exchange).repayFlashDeposit{value: repayValue}( + IExchangeV3(exchange).repayFlashMint{value: repayValue}( address(this), repayToken, repayAmount, @@ -51,4 +51,4 @@ contract TestVault is Claimable, Drainable { { return drainer == owner; } -} +} \ No newline at end of file diff --git a/packages/loopring_v3/contracts/test/TestConverter.sol b/packages/loopring_v3/contracts/test/TestConverter.sol new file mode 100644 index 000000000..46bddc08a --- /dev/null +++ b/packages/loopring_v3/contracts/test/TestConverter.sol @@ -0,0 +1,45 @@ +// SPDX-License-Identifier: Apache-2.0 +// Copyright 2017 Loopring Technology Limited. +pragma solidity ^0.7.0; + +import "../converters/BaseConverter.sol"; +import "./TestSwapper.sol"; + + +/// @author Brecht Devos - +contract TestConverter is BaseConverter +{ + TestSwapper public immutable swapContract; + + constructor( + IExchangeV3 _exchange, + address _tokenIn, + address _tokenOut, + string memory _name, + string memory _symbol, + uint8 _decimals, + TestSwapper _swapContract + ) + BaseConverter(_exchange, _tokenIn, _tokenOut, _name, _symbol, _decimals) + { + swapContract = _swapContract; + } + + function convert( + uint96 amountIn, + uint96 minAmountOut, + bytes calldata /*customData*/ + ) + internal + override + { + uint ethValue = 0; + if (tokenIn != address(0)) { + ERC20(tokenIn).approve(address(swapContract), amountIn); + } else { + ethValue = amountIn; + } + uint amountOut = swapContract.swap{value: ethValue}(amountIn); + require(amountOut >= minAmountOut, "INSUFFICIENT_OUT_AMOUNT"); + } +} diff --git a/packages/loopring_v3/contracts/test/TestSwapper.sol b/packages/loopring_v3/contracts/test/TestSwapper.sol new file mode 100644 index 000000000..cee448006 --- /dev/null +++ b/packages/loopring_v3/contracts/test/TestSwapper.sol @@ -0,0 +1,57 @@ +// SPDX-License-Identifier: Apache-2.0 +// Copyright 2017 Loopring Technology Limited. +pragma solidity ^0.7.0; + +import "../core/iface/IExchangeV3.sol"; +import "../lib/AddressUtil.sol"; +import "../lib/ERC20SafeTransfer.sol"; +import "../lib/MathUint.sol"; + + +/// @author Brecht Devos - +contract TestSwapper +{ + using AddressUtil for address payable; + using ERC20SafeTransfer for address; + using MathUint for uint; + + address public immutable tokenIn; + address public immutable tokenOut; + uint public immutable rate; + + constructor( + address _tokenIn, + address _tokenOut, + uint _rate + ) + { + tokenIn = _tokenIn; + tokenOut = _tokenOut; + rate = _rate; + } + + function swap(uint amountIn) + external + payable + returns (uint amountOut) + { + if (tokenIn == address(0)) { + require(msg.value == amountIn, "INVALID_ETH_DEPOSIT"); + } else { + tokenIn.safeTransferFromAndVerify(msg.sender, address(this), amountIn); + } + + amountOut = amountIn.mul(rate) / 1 ether; + + if (tokenOut == address(0)) { + msg.sender.sendETHAndVerify(amountOut, gasleft()); + } else { + tokenOut.safeTransferAndVerify(msg.sender, amountOut); + } + } + + receive() + external + payable + {} +} \ No newline at end of file diff --git a/packages/loopring_v3/test/testConverter.ts b/packages/loopring_v3/test/testConverter.ts new file mode 100644 index 000000000..3c794cae4 --- /dev/null +++ b/packages/loopring_v3/test/testConverter.ts @@ -0,0 +1,370 @@ +import BN = require("bn.js"); +import { AmmPool, Permit, PermitUtils } from "./ammUtils"; +import { expectThrow } from "./expectThrow"; +import { Constants } from "loopringV3.js"; +import { BalanceSnapshot, ExchangeTestUtil } from "./testExchangeUtil"; +import { AuthMethod, SpotTrade } from "./types"; +import { SignatureType, sign, verifySignature } from "../util/Signature"; + +const AgentRegistry = artifacts.require("AgentRegistry"); + +const TestConverter = artifacts.require("TestConverter"); +const TestSwapper = artifacts.require("TestSwapper"); + +export class Converter { + public ctx: ExchangeTestUtil; + public contract: any; + public address: string; + + public RATE_BASE: BN; + public TOKEN_BASE: BN; + + public tokenIn: string; + public tokenOut: string; + public ticker: string; + + public totalSupply: BN; + + constructor(ctx: ExchangeTestUtil) { + this.ctx = ctx; + this.RATE_BASE = web3.utils.toWei("1", "ether"); + this.TOKEN_BASE = web3.utils.toWei("1", "ether"); + } + + public async setupConverter( + tokenIn: string, + tokenOut: string, + ticker: string, + rate: BN + ) { + this.tokenIn = tokenIn; + this.tokenOut = tokenOut; + this.ticker = ticker; + + const swapper = await TestSwapper.new( + this.ctx.getTokenAddress(tokenIn), + this.ctx.getTokenAddress(tokenOut), + rate + ); + + this.contract = await TestConverter.new( + this.ctx.exchange.address, + this.ctx.getTokenAddress(tokenIn), + this.ctx.getTokenAddress(tokenOut), + "Loopring Convert - TOKA -> TOKB", + "LC-TOKA-TOKB", + 18, + swapper.address + ); + this.address = this.contract.address; + + await this.ctx.transferBalance( + swapper.address, + tokenOut, + new BN(web3.utils.toWei("20", "ether")) + ); + + await this.ctx.registerToken(this.address, ticker); + } + + public async verifySupply(expectedTotalSupply: BN) { + const totalSupply = await this.contract.totalSupply(); + //console.log("totalSupply: " + totalSupply.toString(10)); + assert(totalSupply.eq(expectedTotalSupply), "unexpected total supply"); + } +} + +contract("LoopringConverter", (accounts: string[]) => { + let ctx: ExchangeTestUtil; + + let agentRegistry: any; + let registryOwner: string; + + let broker: string; + let ownerA: string; + let ownerB: string; + + const doConversion = async ( + _tokenIn: string, + _tokenOut: string, + ticker: string, + rate: BN, + letConvertFail: boolean + ) => { + const RATE_BASE = new BN(web3.utils.toWei("1", "ether")); + + const converter = new Converter(ctx); + await converter.setupConverter(_tokenIn, _tokenOut, ticker, rate); + + const amountIn = new BN(web3.utils.toWei("10", "ether")); + const tradeAmountInA = amountIn.div(new BN(4)); + const tradeAmountInB = amountIn.div(new BN(4)).mul(new BN(3)); + + let minAmountOut = amountIn.mul(rate).div(RATE_BASE); + if (letConvertFail) { + minAmountOut = minAmountOut.add(new BN(1)); + } + + //console.log("broker: " + broker); + //console.log("converter : " + converter.address); + //console.log("amountIn : " + amountIn.toString(10)); + //console.log("minAmountOut : " + minAmountOut.toString(10)); + + // Phase 1 + { + const ringA: SpotTrade = { + orderA: { + owner: broker, + tokenS: converter.ticker, + tokenB: converter.tokenIn, + amountS: tradeAmountInA, + amountB: tradeAmountInA, + feeBips: 0, + balanceS: new BN(0), + balanceB: new BN(1) + }, + orderB: { + owner: ownerA, + tokenS: converter.tokenIn, + tokenB: converter.ticker, + amountS: tradeAmountInA, + amountB: tradeAmountInA, + feeBips: 0 + }, + expected: { + orderA: { filledFraction: 1.0, spread: new BN(0) }, + orderB: { filledFraction: 1.0 } + } + }; + await ctx.setupRing(ringA); + + const ringB: SpotTrade = { + orderA: { + owner: broker, + tokenS: converter.ticker, + tokenB: converter.tokenIn, + amountS: tradeAmountInB, + amountB: tradeAmountInB, + feeBips: 0, + balanceS: new BN(0), + balanceB: new BN(1) + }, + orderB: { + owner: ownerB, + tokenS: converter.tokenIn, + tokenB: converter.ticker, + amountS: tradeAmountInB, + amountB: tradeAmountInB, + feeBips: 0 + }, + expected: { + orderA: { filledFraction: 1.0, spread: new BN(0) }, + orderB: { filledFraction: 1.0 } + } + }; + await ctx.setupRing(ringB); + + await ctx.flashMint(broker, converter.ticker, amountIn); + + await ctx.sendRing(ringA); + await ctx.sendRing(ringB); + + await ctx.requestWithdrawal( + broker, + converter.tokenIn, + amountIn, + converter.tokenIn, + new BN(0), + { to: converter.address } + ); + + await ctx.addPostBlocksCallback( + converter.address, + converter.contract.contract.methods + .deposit(amountIn, minAmountOut, web3.utils.hexToBytes("0x")) + .encodeABI() + ); + + await ctx.submitTransactions(); + await ctx.submitPendingBlocks(); + } + + await converter.verifySupply(amountIn); + + // Check result of phase 1 on the vault + const failed = await converter.contract.failed(); + //console.log("failed: " + failed); + assert.equal(failed, letConvertFail, "Conversion status unexpected!"); + + const tokenOut = failed ? converter.tokenIn : converter.tokenOut; + const balance = await ctx.getOnchainBalance( + converter.contract.address, + tokenOut + ); + //console.log("Token: " + tokenOut); + //console.log("Balance: " + balance.toString(10)); + + const amountOut = failed ? amountIn : amountIn.mul(rate).div(RATE_BASE); + const tradeAmountOutA = amountOut.div(new BN(4)); + const tradeAmountOutB = amountOut.div(new BN(4)).mul(new BN(3)); + + //console.log("tradeAmountInA: " + tradeAmountInA.toString(10)); + //console.log("tradeAmountOutA: " + tradeAmountOutA.toString(10)); + + // Phase 2 + { + const ringA: SpotTrade = { + orderA: { + owner: broker, + tokenS: tokenOut, + tokenB: converter.ticker, + amountS: tradeAmountOutA, + amountB: tradeAmountInA, + feeBips: 0 + }, + orderB: { + owner: ownerA, + tokenS: converter.ticker, + tokenB: tokenOut, + amountS: tradeAmountInA, + amountB: tradeAmountOutA, + feeBips: 0, + balanceS: new BN(0), + balanceB: new BN(0) + }, + expected: { + orderA: { filledFraction: 1.0, spread: new BN(0) }, + orderB: { filledFraction: 1.0 } + } + }; + await ctx.setupRing(ringA, true, true, false, false); + + const ringB: SpotTrade = { + orderA: { + owner: broker, + tokenS: tokenOut, + tokenB: converter.ticker, + amountS: tradeAmountOutB, + amountB: tradeAmountInB, + feeBips: 0 + }, + orderB: { + owner: ownerB, + tokenS: converter.ticker, + tokenB: tokenOut, + amountS: tradeAmountInB, + amountB: tradeAmountOutB, + feeBips: 0, + balanceS: new BN(0), + balanceB: new BN(0) + }, + expected: { + orderA: { filledFraction: 1.0, spread: new BN(0) }, + orderB: { filledFraction: 1.0 } + } + }; + await ctx.setupRing(ringB, true, true, false, false); + + await ctx.flashMint(broker, tokenOut, amountOut); + + await ctx.sendRing(ringA); + await ctx.sendRing(ringB); + + await ctx.requestWithdrawal( + broker, + converter.ticker, + amountIn, + converter.ticker, + new BN(0), + { to: converter.address } + ); + + //console.log("amountIn: " + amountIn.toString(10)); + //console.log("amountOut: " + amountOut.toString(10)); + + await ctx.addPostBlocksCallback( + converter.address, + converter.contract.contract.methods + .withdraw(converter.address, broker, amountIn, amountOut) + .encodeABI() + ); + + await ctx.submitTransactions(); + await ctx.submitPendingBlocks(); + + //const balance = await converter.contract.balanceOf(converter.address); + + await converter.verifySupply(new BN(0)); + } + }; + + before(async () => { + ctx = new ExchangeTestUtil(); + await ctx.initialize(accounts); + + broker = ctx.testContext.orderOwners[11]; + ownerA = ctx.testContext.orderOwners[12]; + ownerB = ctx.testContext.orderOwners[13]; + }); + + after(async () => { + await ctx.stop(); + }); + + beforeEach(async () => { + // Fresh Exchange for each test + await ctx.createExchange(ctx.testContext.stateOwners[0], { + setupTestState: true, + deterministic: true + }); + + // Create the agent registry + registryOwner = accounts[7]; + agentRegistry = await AgentRegistry.new({ from: registryOwner }); + + // Register it on the exchange contract + const wrapper = await ctx.contracts.ExchangeV3.at(ctx.operator.address); + await wrapper.setAgentRegistry(agentRegistry.address, { + from: ctx.exchangeOwner + }); + }); + + describe("Converter", function() { + this.timeout(0); + + [false, true].forEach(function(letConvertFail) { + [ + new BN(web3.utils.toWei("1.0", "ether")), + new BN(web3.utils.toWei("0.5", "ether")), + new BN(web3.utils.toWei("2.0", "ether")) + ].forEach(function(rate) { + it.only( + (letConvertFail ? "Failed" : "Successful") + + " conversion ERC20 -> ERC20 - rate: " + + rate.toString(10), + async () => { + await doConversion("GTO", "WETH", "vETH", rate, letConvertFail); + } + ); + + it.only( + (letConvertFail ? "Failed" : "Successful") + + " conversion ETH -> ERC20 - rate: " + + rate.toString(10), + async () => { + await doConversion("ETH", "GTO", "vETH", rate, letConvertFail); + } + ); + + it.only( + (letConvertFail ? "Failed" : "Successful") + + " conversion ERC20 -> ETH - rate: " + + rate.toString(10), + async () => { + await doConversion("GTO", "ETH", "vETH", rate, letConvertFail); + } + ); + }); + }); + }); +}); diff --git a/packages/loopring_v3/test/testDebugTools.ts b/packages/loopring_v3/test/testDebugTools.ts index e5be3d501..40d7170f5 100644 --- a/packages/loopring_v3/test/testDebugTools.ts +++ b/packages/loopring_v3/test/testDebugTools.ts @@ -149,7 +149,9 @@ contract("Exchange", (accounts: string[]) => { useCompression, submitBlocksTxData, blockCallbacks, - gasTokenConfig + gasTokenConfig, + [], + [] ); console.log(withCallbacksParameters); diff --git a/packages/loopring_v3/test/testExchangeUtil.ts b/packages/loopring_v3/test/testExchangeUtil.ts index 4bd62ac0c..8fbe0e786 100644 --- a/packages/loopring_v3/test/testExchangeUtil.ts +++ b/packages/loopring_v3/test/testExchangeUtil.ts @@ -35,6 +35,8 @@ import { Block, BlockCallback, Deposit, + FlashMint, + PostBlocksCallback, GasTokenConfig, Transfer, Noop, @@ -537,6 +539,8 @@ export class ExchangeTestUtil { private pendingTransactions: TxType[][] = []; private pendingBlockCallbacks: BlockCallback[][] = []; + private pendingFlashMints: FlashMint[][] = []; + private pendingPostBlocksCallbacks: PostBlocksCallback[][] = []; private storageIDGenerator: number = 0; @@ -574,13 +578,15 @@ export class ExchangeTestUtil { // { from: this.testContext.deployer } // ); - await this.loopringV3.updateProtocolFeeSettings(50, 0, { + await this.loopringV3.updateProtocolFeeSettings(0, 0, { from: this.testContext.deployer }); for (let i = 0; i < this.MAX_NUM_EXCHANGES; i++) { this.pendingTransactions.push([]); this.pendingBlockCallbacks.push([]); + this.pendingFlashMints.push([]); + this.pendingPostBlocksCallbacks.push([]); this.pendingBlocks.push([]); this.blocks.push([]); @@ -1011,7 +1017,7 @@ export class ExchangeTestUtil { const deposit = await this.deposit( order.owner, order.owner, - order.tokenS, + balanceS.gt(new BN(0)) ? order.tokenS : "ETH", balanceS ); order.accountID = deposit.accountID; @@ -1133,9 +1139,6 @@ export class ExchangeTestUtil { ? options.amountDepositedCanDiffer : this.exchange; - //console.log("token:" + token); - //console.log("amount:" + amount.toString(10)); - if (!token.startsWith("0x")) { token = this.testContext.tokenSymbolAddrMap.get(token); } @@ -1247,6 +1250,30 @@ export class ExchangeTestUtil { return deposit; } + public async flashMint(owner: string, token: string, amount: BN) { + this.requestDeposit(owner, token, amount); + this.addFlashMint(owner, token, amount); + } + + public addFlashMint(owner: string, token: string, amount: BN) { + const flashMint: FlashMint = { + to: owner, + token: this.getTokenAddress(token), + amount: amount.toString(10) + }; + this.pendingFlashMints[this.exchangeId].push(flashMint); + return flashMint; + } + + public addPostBlocksCallback(to: string, data: string) { + const postBlocksCallback: PostBlocksCallback = { + to, + data + }; + this.pendingPostBlocksCallbacks[this.exchangeId].push(postBlocksCallback); + return postBlocksCallback; + } + public hexToDecString(hex: string) { return new BN(hex.slice(2), 16).toString(10); } @@ -1922,7 +1949,9 @@ export class ExchangeTestUtil { parameters.isDataCompressed, parameters.data, parameters.callbackConfig, - parameters.gasTokenConfig + parameters.gasTokenConfig, + parameters.flashMints, + parameters.postBlocksCallbacks ) .encodeABI(); } @@ -1931,7 +1960,9 @@ export class ExchangeTestUtil { isDataCompressed: boolean, txData: string, blockCallbacks: BlockCallback[][], - gasTokenConfig: GasTokenConfig + gasTokenConfig: GasTokenConfig, + flashMints: FlashMint[], + postBlocksCallbacks: PostBlocksCallback[] ) { const data = isDataCompressed ? compressZeros(txData) : txData; //console.log(data); @@ -1943,7 +1974,9 @@ export class ExchangeTestUtil { isDataCompressed, data, callbackConfig, - gasTokenConfig + gasTokenConfig, + flashMints, + postBlocksCallbacks }; } @@ -2072,7 +2105,9 @@ export class ExchangeTestUtil { true, txData, blockCallbacks, - gasTokenConfig + gasTokenConfig, + this.pendingFlashMints[this.exchangeId], + this.pendingPostBlocksCallbacks[this.exchangeId] ); // Submit the blocks onchain @@ -2119,6 +2154,8 @@ export class ExchangeTestUtil { parameters.data, parameters.callbackConfig, gasTokenConfig, + parameters.flashMints, + parameters.postBlocksCallbacks, //txData, { from: this.exchangeOperator, gasPrice: 0 } ); @@ -2150,6 +2187,9 @@ export class ExchangeTestUtil { ); const ethBlock = await web3.eth.getBlock(tx.receipt.blockNumber); + this.pendingFlashMints[this.exchangeId] = []; + this.pendingPostBlocksCallbacks[this.exchangeId] = []; + // Check number of blocks submitted const numBlocksSubmittedAfter = ( await this.exchange.getBlockHeight() @@ -2636,10 +2676,22 @@ export class ExchangeTestUtil { return bs.getData(); } - public async registerToken(tokenAddress: string) { - const tx = await this.exchange.registerToken(tokenAddress, { + public async registerToken(tokenAddress: string, symbol?: string) { + const onchainExchangeOwner = await this.exchange.owner(); + let contract = this.exchange; + if (this.operator && this.operator.address == onchainExchangeOwner) { + contract = await this.contracts.ExchangeV3.at(this.operator.address); + } + + // Register it on the exchange contract + const tx = await contract.registerToken(tokenAddress, { from: this.exchangeOwner }); + if (symbol) { + this.testContext.tokenSymbolAddrMap.set(symbol, tokenAddress); + } + + await this.addTokenToMaps(tokenAddress); // logInfo("\x1b[46m%s\x1b[0m", "[TokenRegistration] Gas used: " + tx.receipt.gasUsed); } @@ -2917,8 +2969,16 @@ export class ExchangeTestUtil { } public async transferBalance(to: string, token: string, amount: BN) { - const Token = await this.getTokenContract(token); - await Token.transfer(to, amount, { from: this.testContext.deployer }); + if (token === "ETH" || token === Constants.zeroAddress) { + await web3.eth.sendTransaction({ + from: this.testContext.deployer, + to: to, + value: amount + }); + } else { + const Token = await this.getTokenContract(token); + await Token.transfer(to, amount, { from: this.testContext.deployer }); + } } public evmIncreaseTime(seconds: number) { diff --git a/packages/loopring_v3/test/types.ts b/packages/loopring_v3/test/types.ts index 3e1739d59..eb9477beb 100644 --- a/packages/loopring_v3/test/types.ts +++ b/packages/loopring_v3/test/types.ts @@ -237,6 +237,17 @@ export interface GasTokenConfig { calldataCost: number; } +export interface FlashMint { + to: string; + token: string; + amount: string; +} + +export interface PostBlocksCallback { + to: string; + data: string; +} + export interface Block { blockIdx: number; filename: string; From b868997e5523ed19ab4efaaf0b43edbeaf582a40 Mon Sep 17 00:00:00 2001 From: Brechtpd Date: Sun, 7 Mar 2021 22:57:02 +0100 Subject: [PATCH 03/15] Small improvements --- .../aux/access/LoopringIOExchangeOwner.sol | 41 ++++--- .../contracts/converters/BaseConverter.sol | 69 ++++++++---- .../contracts/core/iface/IExchangeV3.sol | 29 +++-- .../loopring_v3/contracts/lib/LPERC20.sol | 7 +- .../contracts/test/TestConverter.sol | 20 ++-- packages/loopring_v3/test/testConverter.ts | 103 +++++++++++++----- 6 files changed, 184 insertions(+), 85 deletions(-) diff --git a/packages/loopring_v3/contracts/aux/access/LoopringIOExchangeOwner.sol b/packages/loopring_v3/contracts/aux/access/LoopringIOExchangeOwner.sol index 8c19161ce..7992ea736 100644 --- a/packages/loopring_v3/contracts/aux/access/LoopringIOExchangeOwner.sol +++ b/packages/loopring_v3/contracts/aux/access/LoopringIOExchangeOwner.sol @@ -50,7 +50,7 @@ contract LoopringIOExchangeOwner is SelectorBasedAccessManager, ERC1271, Drainab address[] receivers; } - struct PostBlocksCallbacks + struct PostBlocksCallback { address to; bytes data; @@ -101,16 +101,15 @@ contract LoopringIOExchangeOwner is SelectorBasedAccessManager, ERC1271, Drainab bytes calldata data, CallbackConfig calldata config, ExchangeData.FlashMint[] calldata flashMints, - PostBlocksCallbacks[] calldata postBlocksCallbacks + PostBlocksCallback[] calldata postBlocksCallbacks ) external { - IAgentRegistry agentRegistry = IExchangeV3(target).getAgentRegistry(); - if (config.blockCallbacks.length > 0) { require(config.receivers.length > 0, "MISSING_RECEIVERS"); // Make sure the receiver is authorized to approve transactions + IAgentRegistry agentRegistry = IExchangeV3(target).getAgentRegistry(); for (uint i = 0; i < config.receivers.length; i++) { require(agentRegistry.isUniversalAgent(config.receivers[i]), "UNAUTHORIZED_RECEIVER"); } @@ -136,23 +135,20 @@ contract LoopringIOExchangeOwner is SelectorBasedAccessManager, ERC1271, Drainab _beforeBlockSubmission(blocks, config); // Do flash mints - IExchangeV3(target).flashMint(flashMints); + if (flashMints.length > 0) { + IExchangeV3(target).flashMint(flashMints); + } // Submit blocks target.fastCallAndVerify(gasleft(), 0, decompressed); // Do post blocks callbacks - for (uint i = 0; i < postBlocksCallbacks.length; i++) { - require(postBlocksCallbacks[i].to != target, "EXCHANGE_CANNOT_BE_POST_CALLBACK_TARGET"); - require(!agentRegistry.isUniversalAgent(postBlocksCallbacks[i].to), "UNI_AGENT_CANNOT_BE_POST_CALLBACK_TARGET"); - (bool success, bytes memory returnData) = postBlocksCallbacks[i].to.call(postBlocksCallbacks[i].data); - if (!success) { - assembly { revert(add(returnData, 32), mload(returnData)) } - } - } + _afterBlockSubmission(blocks, postBlocksCallbacks); // Make sure flash mints were repaid - IExchangeV3(target).verifyFlashMintsPaidBack(flashMints); + if (flashMints.length > 0) { + IExchangeV3(target).verifyFlashMintsPaidBack(flashMints); + } } function _beforeBlockSubmission( @@ -213,6 +209,23 @@ contract LoopringIOExchangeOwner is SelectorBasedAccessManager, ERC1271, Drainab } } + function _afterBlockSubmission( + ExchangeData.Block[] memory /*blocks*/, + PostBlocksCallback[] calldata postBlocksCallbacks + ) + private + { + for (uint i = 0; i < postBlocksCallbacks.length; i++) { + // Disallow calls to the exchange and pre block callback contracts + require(postBlocksCallbacks[i].to != target, "EXCHANGE_CANNOT_BE_POST_CALLBACK_TARGET"); + require(postBlocksCallbacks[i].data.toBytes4(0) != IBlockReceiver.beforeBlockSubmission.selector, "INVALID_POST_CALLBACK_FUNCTION"); + (bool success, bytes memory returnData) = postBlocksCallbacks[i].to.call(postBlocksCallbacks[i].data); + if (!success) { + assembly { revert(add(returnData, 32), mload(returnData)) } + } + } + } + function _processTxCallbacks( ExchangeData.Block memory _block, TxCallback[] calldata txCallbacks, diff --git a/packages/loopring_v3/contracts/converters/BaseConverter.sol b/packages/loopring_v3/contracts/converters/BaseConverter.sol index e09fe207c..38da0fa61 100644 --- a/packages/loopring_v3/contracts/converters/BaseConverter.sol +++ b/packages/loopring_v3/contracts/converters/BaseConverter.sol @@ -19,13 +19,16 @@ abstract contract BaseConverter is LPERC20, Claimable, Drainable using ERC20SafeTransfer for address; using MathUint for uint; - event Deposit (bool success, string reason); + event ConversionSuccess (uint amountIn, uint amountOut); + event ConversionFailed (string reason); IExchangeV3 public immutable exchange; IDepositContract public immutable depositContract; - address public immutable tokenIn; - address public immutable tokenOut; + bool public initialized; + + address public tokenIn; + address public tokenOut; bool public failed; @@ -36,19 +39,29 @@ abstract contract BaseConverter is LPERC20, Claimable, Drainable } constructor( - IExchangeV3 _exchange, - address _tokenIn, - address _tokenOut, - string memory _name, - string memory _symbol, - uint8 _decimals + IExchangeV3 _exchange ) - LPERC20(_name, _symbol, _decimals) { exchange = _exchange; depositContract = _exchange.getDepositContract(); + } + + function initialize( + string memory _name, + string memory _symbol, + uint8 _decimals, + address _tokenIn, + address _tokenOut + ) + external + { + require(!initialized, "ALREADY_INITIALIZED"); + initializeToken(_name, _symbol, _decimals); + tokenIn = _tokenIn; tokenOut = _tokenOut; + + initialized = true; } function deposit( @@ -63,15 +76,16 @@ abstract contract BaseConverter is LPERC20, Claimable, Drainable require(totalSupply == 0); // Converter specific logic, which can fail - try BaseConverter(this).convertExternal(amountIn, minAmountOut, customData) { + try BaseConverter(this).convertExternal(amountIn, minAmountOut, customData) + returns (uint amountOut) { failed = false; - emit Deposit(true, ""); + emit ConversionSuccess(amountIn, amountOut); } catch Error(string memory reason) { - emit Deposit(false, reason); failed = true; + emit ConversionFailed(reason); } catch { failed = true; - emit Deposit(false, "unknown"); + emit ConversionFailed("unknown"); } _mint(address(this), amountIn); @@ -80,31 +94,35 @@ abstract contract BaseConverter is LPERC20, Claimable, Drainable } function withdraw( - address from, address to, uint96 poolAmount, uint96 repayAmount ) public { - require(from == msg.sender || from == address(this), "UNAUTHORIZED"); - + // Token to withdraw address token = failed ? tokenIn : tokenOut; + // Current balance in the contract uint balance = 0; if (token == address(0)) { balance = address(this).balance; } else { balance = ERC20(token).balanceOf(address(this)); } + + // Share to withdraw uint amount = balance.mul(poolAmount) / totalSupply; - _burn(from, poolAmount); + // Burn pool tokens + _burn(msg.sender, poolAmount); + // Use to repay flash mint directly if requested if (repayAmount > 0) { _repay(token, repayAmount); } + // Send remaining amount to `to` uint amountToSend = amount.sub(repayAmount); if (token == address(0)) { to.sendETHAndVerify(amountToSend, gasleft()); // ETH @@ -113,6 +131,7 @@ abstract contract BaseConverter is LPERC20, Claimable, Drainable } } + // Wrapper around `convert` which enforces only self calls. function convertExternal( uint96 amountIn, uint96 minAmountOut, @@ -120,9 +139,10 @@ abstract contract BaseConverter is LPERC20, Claimable, Drainable ) external virtual + returns (uint amountOut) { require(msg.sender == address(this), "UNAUTHORIZED"); - convert(amountIn, minAmountOut, customData); + amountOut = convert(amountIn, minAmountOut, customData); } receive() @@ -136,12 +156,14 @@ abstract contract BaseConverter is LPERC20, Claimable, Drainable ) private { - // Repay + uint ethValue = 0; if (token != address(0)) { ERC20(token).approve(address(depositContract), amount); + } else { + ethValue = amount; } - uint repayValue = (token == address(0)) ? amount : 0; - IExchangeV3(exchange).repayFlashMint{value: repayValue}( + + IExchangeV3(exchange).repayFlashMint{value: ethValue}( address(this), token, amount, @@ -165,5 +187,6 @@ abstract contract BaseConverter is LPERC20, Claimable, Drainable bytes calldata customData ) internal - virtual; + virtual + returns (uint amountOut); } diff --git a/packages/loopring_v3/contracts/core/iface/IExchangeV3.sol b/packages/loopring_v3/contracts/core/iface/IExchangeV3.sol index 704c7ad25..8e2135cad 100644 --- a/packages/loopring_v3/contracts/core/iface/IExchangeV3.sol +++ b/packages/loopring_v3/contracts/core/iface/IExchangeV3.sol @@ -344,12 +344,23 @@ abstract contract IExchangeV3 is Claimable returns (uint96); + /// @dev Flash mints tokens on L2. + /// The amount minted has to be repaid using `repayFlashMint`. + /// + /// This function is only callable by the owner. + /// + /// @param flashMints The list of flash mints to be done. function flashMint( ExchangeData.FlashMint[] calldata flashMints ) external virtual; + /// @dev Repays funds minted using `flashMint`. + /// @param from The address that deposits the funds to the exchange + /// @param tokenAddress The address of the token, use `0x0` for Ether. + /// @param amount The amount of tokens to deposit + /// @param extraData Optional extra data used by the deposit contract function repayFlashMint( address from, address tokenAddress, @@ -360,20 +371,24 @@ abstract contract IExchangeV3 is Claimable virtual payable; - function getAmountFlashMinted( - address tokenAddress + /// @dev Verifies all minted tokens were paid back. + /// @param flashMints The list of flash mints that were done. + function verifyFlashMintsPaidBack( + ExchangeData.FlashMint[] calldata flashMints ) external virtual - view - returns (uint96); + view; - function verifyFlashMintsPaidBack( - ExchangeData.FlashMint[] calldata flashMints + /// @dev Returns the amount flash minted for a specific token. + /// @param tokenAddress The token + function getAmountFlashMinted( + address tokenAddress ) external virtual - view; + view + returns (uint96); // -- Withdrawals -- /// @dev Submits an onchain request to force withdraw Ether or ERC20 tokens. diff --git a/packages/loopring_v3/contracts/lib/LPERC20.sol b/packages/loopring_v3/contracts/lib/LPERC20.sol index bf4cace43..188b31dd5 100644 --- a/packages/loopring_v3/contracts/lib/LPERC20.sol +++ b/packages/loopring_v3/contracts/lib/LPERC20.sol @@ -13,11 +13,11 @@ contract LPERC20 is ERC20 using MathUint for uint; using SignatureUtil for bytes32; - bytes32 public immutable DOMAIN_SEPARATOR; + bytes32 public DOMAIN_SEPARATOR; string public name; string public symbol; - uint8 public immutable decimals; + uint8 public decimals; uint public override totalSupply; mapping(address => uint) public override balanceOf; @@ -29,11 +29,12 @@ contract LPERC20 is ERC20 bytes32 public constant PERMIT_TYPEHASH = keccak256("Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)"); - constructor( + function initializeToken( string memory _name, string memory _symbol, uint8 _decimals ) + internal { DOMAIN_SEPARATOR = EIP712.hash(EIP712.Domain("LPERC20", "1.0", address(this))); diff --git a/packages/loopring_v3/contracts/test/TestConverter.sol b/packages/loopring_v3/contracts/test/TestConverter.sol index 46bddc08a..b1a9332d1 100644 --- a/packages/loopring_v3/contracts/test/TestConverter.sol +++ b/packages/loopring_v3/contracts/test/TestConverter.sol @@ -12,15 +12,10 @@ contract TestConverter is BaseConverter TestSwapper public immutable swapContract; constructor( - IExchangeV3 _exchange, - address _tokenIn, - address _tokenOut, - string memory _name, - string memory _symbol, - uint8 _decimals, - TestSwapper _swapContract + IExchangeV3 _exchange, + TestSwapper _swapContract ) - BaseConverter(_exchange, _tokenIn, _tokenOut, _name, _symbol, _decimals) + BaseConverter(_exchange) { swapContract = _swapContract; } @@ -32,14 +27,17 @@ contract TestConverter is BaseConverter ) internal override + returns (uint amountOut) { + address _tokenIn = tokenIn; + uint ethValue = 0; - if (tokenIn != address(0)) { - ERC20(tokenIn).approve(address(swapContract), amountIn); + if (_tokenIn != address(0)) { + ERC20(_tokenIn).approve(address(swapContract), amountIn); } else { ethValue = amountIn; } - uint amountOut = swapContract.swap{value: ethValue}(amountIn); + amountOut = swapContract.swap{value: ethValue}(amountIn); require(amountOut >= minAmountOut, "INSUFFICIENT_OUT_AMOUNT"); } } diff --git a/packages/loopring_v3/test/testConverter.ts b/packages/loopring_v3/test/testConverter.ts index 3c794cae4..9af13750e 100644 --- a/packages/loopring_v3/test/testConverter.ts +++ b/packages/loopring_v3/test/testConverter.ts @@ -49,12 +49,14 @@ export class Converter { this.contract = await TestConverter.new( this.ctx.exchange.address, - this.ctx.getTokenAddress(tokenIn), - this.ctx.getTokenAddress(tokenOut), + swapper.address + ); + await this.contract.initialize( "Loopring Convert - TOKA -> TOKB", "LC-TOKA-TOKB", 18, - swapper.address + this.ctx.getTokenAddress(tokenIn), + this.ctx.getTokenAddress(tokenOut) ); this.address = this.contract.address; @@ -80,6 +82,10 @@ contract("LoopringConverter", (accounts: string[]) => { let agentRegistry: any; let registryOwner: string; + const amountIn = new BN(web3.utils.toWei("10", "ether")); + const tradeAmountInA = amountIn.div(new BN(4)); + const tradeAmountInB = amountIn.div(new BN(4)).mul(new BN(3)); + let broker: string; let ownerA: string; let ownerB: string; @@ -89,19 +95,16 @@ contract("LoopringConverter", (accounts: string[]) => { _tokenOut: string, ticker: string, rate: BN, - letConvertFail: boolean + expectedSuccess: boolean, + doPhase2: boolean = true ) => { const RATE_BASE = new BN(web3.utils.toWei("1", "ether")); const converter = new Converter(ctx); await converter.setupConverter(_tokenIn, _tokenOut, ticker, rate); - const amountIn = new BN(web3.utils.toWei("10", "ether")); - const tradeAmountInA = amountIn.div(new BN(4)); - const tradeAmountInB = amountIn.div(new BN(4)).mul(new BN(3)); - let minAmountOut = amountIn.mul(rate).div(RATE_BASE); - if (letConvertFail) { + if (!expectedSuccess) { minAmountOut = minAmountOut.add(new BN(1)); } @@ -191,16 +194,20 @@ contract("LoopringConverter", (accounts: string[]) => { await converter.verifySupply(amountIn); + if (!doPhase2) { + return converter; + } + // Check result of phase 1 on the vault const failed = await converter.contract.failed(); //console.log("failed: " + failed); - assert.equal(failed, letConvertFail, "Conversion status unexpected!"); + assert.equal(failed, !expectedSuccess, "Conversion status unexpected!"); const tokenOut = failed ? converter.tokenIn : converter.tokenOut; - const balance = await ctx.getOnchainBalance( - converter.contract.address, - tokenOut - ); + //const balance = await ctx.getOnchainBalance( + // converter.contract.address, + // tokenOut + //); //console.log("Token: " + tokenOut); //console.log("Balance: " + balance.toString(10)); @@ -254,7 +261,7 @@ contract("LoopringConverter", (accounts: string[]) => { tokenB: tokenOut, amountS: tradeAmountInB, amountB: tradeAmountOutB, - feeBips: 0, + feeBips: 20, balanceS: new BN(0), balanceB: new BN(0) }, @@ -276,7 +283,7 @@ contract("LoopringConverter", (accounts: string[]) => { amountIn, converter.ticker, new BN(0), - { to: converter.address } + { to: ctx.operator.address } ); //console.log("amountIn: " + amountIn.toString(10)); @@ -285,7 +292,7 @@ contract("LoopringConverter", (accounts: string[]) => { await ctx.addPostBlocksCallback( converter.address, converter.contract.contract.methods - .withdraw(converter.address, broker, amountIn, amountOut) + .withdraw(broker, amountIn, amountOut) .encodeABI() ); @@ -332,39 +339,81 @@ contract("LoopringConverter", (accounts: string[]) => { describe("Converter", function() { this.timeout(0); - [false, true].forEach(function(letConvertFail) { + [true, false].forEach(function(success) { [ new BN(web3.utils.toWei("1.0", "ether")), new BN(web3.utils.toWei("0.5", "ether")), new BN(web3.utils.toWei("2.0", "ether")) ].forEach(function(rate) { - it.only( - (letConvertFail ? "Failed" : "Successful") + + it( + (success ? "Successful" : "Failed") + " conversion ERC20 -> ERC20 - rate: " + rate.toString(10), async () => { - await doConversion("GTO", "WETH", "vETH", rate, letConvertFail); + await doConversion("GTO", "WETH", "vETH", rate, success); } ); - it.only( - (letConvertFail ? "Failed" : "Successful") + + it( + (success ? "Successful" : "Failed") + " conversion ETH -> ERC20 - rate: " + rate.toString(10), async () => { - await doConversion("ETH", "GTO", "vETH", rate, letConvertFail); + await doConversion("ETH", "GTO", "vETH", rate, success); } ); - it.only( - (letConvertFail ? "Failed" : "Successful") + + it( + (success ? "Successful" : "Failed") + " conversion ERC20 -> ETH - rate: " + rate.toString(10), async () => { - await doConversion("GTO", "ETH", "vETH", rate, letConvertFail); + await doConversion("GTO", "ETH", "vETH", rate, success); } ); }); }); + + it("Manual withdrawal", async () => { + const rate = new BN(web3.utils.toWei("1.0", "ether")); + const converter = await doConversion( + "ETH", + "WETH", + "vETH", + rate, + true, + false + ); + + await ctx.requestWithdrawal( + ownerA, + converter.ticker, + tradeAmountInA, + converter.ticker, + new BN(0) + ); + + await ctx.submitTransactions(); + await ctx.submitPendingBlocks(); + + const snapshot = new BalanceSnapshot(ctx); + await snapshot.transfer( + converter.address, + ownerA, + converter.tokenOut, + tradeAmountInA, + "converter", + "from" + ); + + await converter.verifySupply(amountIn); + await converter.contract.withdraw(ownerA, tradeAmountInA, new BN(0), { + from: ownerA + }); + await converter.verifySupply(amountIn.sub(tradeAmountInA)); + + // Verify balances + await snapshot.verifyBalances(); + }); }); }); From 579fcd9a19c57cdd3c0f6ea1b3d4a10accdb692f Mon Sep 17 00:00:00 2001 From: Brechtpd Date: Tue, 9 Mar 2021 16:37:18 +0100 Subject: [PATCH 04/15] Small optimization (pre approve tokens) --- .../contracts/converters/BaseConverter.sol | 21 ++++++++++++------- .../contracts/test/TestConverter.sol | 19 ++++++++++------- packages/loopring_v3/test/testConverter.ts | 1 + 3 files changed, 26 insertions(+), 15 deletions(-) diff --git a/packages/loopring_v3/contracts/converters/BaseConverter.sol b/packages/loopring_v3/contracts/converters/BaseConverter.sol index 38da0fa61..a13dd2282 100644 --- a/packages/loopring_v3/contracts/converters/BaseConverter.sol +++ b/packages/loopring_v3/contracts/converters/BaseConverter.sol @@ -156,13 +156,7 @@ abstract contract BaseConverter is LPERC20, Claimable, Drainable ) private { - uint ethValue = 0; - if (token != address(0)) { - ERC20(token).approve(address(depositContract), amount); - } else { - ethValue = amount; - } - + uint ethValue = (token == address(0)) ? amount : 0; IExchangeV3(exchange).repayFlashMint{value: ethValue}( address(this), token, @@ -171,6 +165,19 @@ abstract contract BaseConverter is LPERC20, Claimable, Drainable ); } + function approveTokens() + public + virtual + { + if (tokenIn != address(0)) { + ERC20(tokenIn).approve(address(depositContract), type(uint256).max); + } + if (tokenOut != address(0)) { + ERC20(tokenOut).approve(address(depositContract), type(uint256).max); + } + ERC20(address(this)).approve(address(depositContract), type(uint256).max); + } + function canDrain(address drainer, address /* token */) public override diff --git a/packages/loopring_v3/contracts/test/TestConverter.sol b/packages/loopring_v3/contracts/test/TestConverter.sol index b1a9332d1..ca753e554 100644 --- a/packages/loopring_v3/contracts/test/TestConverter.sol +++ b/packages/loopring_v3/contracts/test/TestConverter.sol @@ -29,15 +29,18 @@ contract TestConverter is BaseConverter override returns (uint amountOut) { - address _tokenIn = tokenIn; - - uint ethValue = 0; - if (_tokenIn != address(0)) { - ERC20(_tokenIn).approve(address(swapContract), amountIn); - } else { - ethValue = amountIn; - } + uint ethValue = (tokenIn == address(0)) ? amountIn : 0; amountOut = swapContract.swap{value: ethValue}(amountIn); require(amountOut >= minAmountOut, "INSUFFICIENT_OUT_AMOUNT"); } + + function approveTokens() + public + override + { + super.approveTokens(); + if (tokenIn != address(0)) { + ERC20(tokenIn).approve(address(swapContract), type(uint256).max); + } + } } diff --git a/packages/loopring_v3/test/testConverter.ts b/packages/loopring_v3/test/testConverter.ts index 9af13750e..d3a7d6d6a 100644 --- a/packages/loopring_v3/test/testConverter.ts +++ b/packages/loopring_v3/test/testConverter.ts @@ -58,6 +58,7 @@ export class Converter { this.ctx.getTokenAddress(tokenIn), this.ctx.getTokenAddress(tokenOut) ); + await this.contract.approveTokens(); this.address = this.contract.address; await this.ctx.transferBalance( From 45593d080da273d076eb7eaeab688a146254ccb4 Mon Sep 17 00:00:00 2001 From: Brechtpd Date: Sun, 14 Mar 2021 23:56:20 +0100 Subject: [PATCH 05/15] Initial bridge implementation --- .../aux/access/LoopringIOExchangeOwner.sol | 8 +- .../contracts/aux/bridge/Bridge.sol | 550 ++++++++++++++++++ .../contracts/aux/bridge/BridgeData.sol | 54 ++ .../contracts/aux/bridge/IBridge.sol | 17 + .../contracts/aux/bridge/IBridgeConnector.sol | 14 + .../core/impl/libexchange/ExchangeBlocks.sol | 11 +- .../libtransactions/WithdrawTransaction.sol | 9 +- .../contracts/test/TestSwapper.sol | 2 +- .../test/TestSwappperBridgeConnector.sol | 89 +++ packages/loopring_v3/test/testBridge.ts | 549 +++++++++++++++++ packages/loopring_v3/test/testExchangeUtil.ts | 9 +- 11 files changed, 1299 insertions(+), 13 deletions(-) create mode 100644 packages/loopring_v3/contracts/aux/bridge/Bridge.sol create mode 100644 packages/loopring_v3/contracts/aux/bridge/BridgeData.sol create mode 100644 packages/loopring_v3/contracts/aux/bridge/IBridge.sol create mode 100644 packages/loopring_v3/contracts/aux/bridge/IBridgeConnector.sol create mode 100644 packages/loopring_v3/contracts/test/TestSwappperBridgeConnector.sol create mode 100644 packages/loopring_v3/test/testBridge.ts diff --git a/packages/loopring_v3/contracts/aux/access/LoopringIOExchangeOwner.sol b/packages/loopring_v3/contracts/aux/access/LoopringIOExchangeOwner.sol index 7992ea736..321f2e032 100644 --- a/packages/loopring_v3/contracts/aux/access/LoopringIOExchangeOwner.sol +++ b/packages/loopring_v3/contracts/aux/access/LoopringIOExchangeOwner.sol @@ -131,9 +131,6 @@ contract LoopringIOExchangeOwner is SelectorBasedAccessManager, ERC1271, Drainab // Decode the blocks ExchangeData.Block[] memory blocks = _decodeBlocks(decompressed); - // Do pre blocks callbacks - _beforeBlockSubmission(blocks, config); - // Do flash mints if (flashMints.length > 0) { IExchangeV3(target).flashMint(flashMints); @@ -142,6 +139,9 @@ contract LoopringIOExchangeOwner is SelectorBasedAccessManager, ERC1271, Drainab // Submit blocks target.fastCallAndVerify(gasleft(), 0, decompressed); + // Do transaction verifying blocks callbacks + _verifyTransactions(blocks, config); + // Do post blocks callbacks _afterBlockSubmission(blocks, postBlocksCallbacks); @@ -151,7 +151,7 @@ contract LoopringIOExchangeOwner is SelectorBasedAccessManager, ERC1271, Drainab } } - function _beforeBlockSubmission( + function _verifyTransactions( ExchangeData.Block[] memory blocks, CallbackConfig calldata config ) diff --git a/packages/loopring_v3/contracts/aux/bridge/Bridge.sol b/packages/loopring_v3/contracts/aux/bridge/Bridge.sol new file mode 100644 index 000000000..f49bfd689 --- /dev/null +++ b/packages/loopring_v3/contracts/aux/bridge/Bridge.sol @@ -0,0 +1,550 @@ +// SPDX-License-Identifier: Apache-2.0 +// Copyright 2017 Loopring Technology Limited. +pragma solidity ^0.7.0; +pragma experimental ABIEncoderV2; + +import "../../core/iface/IExchangeV3.sol"; +import "../../core/impl/libtransactions/BlockReader.sol"; +import "../../core/impl/libtransactions/TransferTransaction.sol"; +import "../../core/impl/libtransactions/SignatureVerificationTransaction.sol"; +import "../../core/impl/libtransactions/WithdrawTransaction.sol"; +import "../../lib/AddressUtil.sol"; +import "../../lib/ERC20SafeTransfer.sol"; +import "../../lib/ERC20.sol"; +import "../../lib/MathUint.sol"; +import "../../lib/MathUint96.sol"; +import "../../thirdparty/BytesUtil.sol"; + +import "./BridgeData.sol"; +import "./IBridgeConnector.sol"; + + +/// @title Bridge +contract Bridge is Claimable +{ + using AddressUtil for address; + using BytesUtil for bytes; + using BlockReader for bytes; + using ERC20SafeTransfer for address; + using MathUint for uint; + using MathUint96 for uint96; + + struct Context + { + bytes32 domainSeparator; + uint32 accountID; + uint txIdx; + } + + struct HashAuxData + { + address connector; + bytes groupData; + } + + bytes32 constant public BRIDGE_CALL_TYPEHASH = keccak256( + "BridgeCall(address from,address to,uint16 tokenID,uint96 amount,uint16 feeTokenID,uint96 maxFee,uint32 storageID,uint32 minGas,address connector,bytes groupData,bytes userData)" + ); + + uint public constant MAX_NUM_TRANSACTIONS_IN_BLOCK = 386; + uint public constant MAX_AGE_PENDING_TRANSFERS = 7 days; + uint public constant MAX_FEE_BIPS = 25; // 0.25% + + IExchangeV3 public immutable exchange; + uint32 public immutable accountID; + IDepositContract public immutable depositContract; + bytes32 public immutable DOMAIN_SEPARATOR; + + + address public exchangeOwner; + + mapping (bytes32 => uint) public pendingTransfers; + mapping (bytes32 => mapping(uint => bool)) public withdrawn; + + mapping (address => bool) public trustedConnectors; + + uint public batchIDGenerator; + + event Transfers(uint batchID, BridgeTransfer[] transfers); + + event BridgeCallSuccess (bytes32 hash); + event BridgeCallFailed (bytes32 hash, string reason); + + event ConnectorTrusted (address connector, bool trusted); + + modifier onlyFromExchangeOwner() + { + require(msg.sender == exchangeOwner, "UNAUTHORIZED"); + _; + } + + constructor( + IExchangeV3 _exchange, + uint32 _accountID + ) + { + exchange = _exchange; + accountID = _accountID; + + depositContract = _exchange.getDepositContract(); + exchangeOwner = _exchange.owner(); + + DOMAIN_SEPARATOR = EIP712.hash(EIP712.Domain("Bridge", "1.0", address(this))); + } + + function batchDeposit( + address from, + BridgeTransfer[] calldata deposits + ) + external + payable + { + require(from == msg.sender, "UNAUTHORIZED"); + // Needs to be possible to do all transfers in a single block + require(deposits.length <= MAX_NUM_TRANSACTIONS_IN_BLOCK, "MAX_DEPOSITS_EXCEEDED"); + + uint totalETH = 0; + address token = address(0); + uint96 total = 0; + for (uint i = 0; i < deposits.length; i++) { + if (total == 0) { + token = deposits[i].token; + } + if(token != deposits[i].token) { + _deposit(from, token, total); + totalETH = (token == address(0)) ? totalETH.add(total) : totalETH; + } + + total = total.add(deposits[i].amount); + } + if(total > 0) { + _deposit(from, token, total); + totalETH = (token == address(0)) ? totalETH.add(total) : totalETH; + } + require(totalETH == msg.value, "INVALID_ETH_DEPOSIT"); + + _storeTransfers(deposits); + } + + function beforeBlockSubmission( + bytes memory txsData, + bytes calldata callbackData + ) + external + onlyFromExchangeOwner + { + BridgeOperations memory operations = abi.decode(callbackData, (BridgeOperations)); + + Context memory ctx = Context({ + domainSeparator: DOMAIN_SEPARATOR, + accountID: accountID, + txIdx: 0 + }); + + _processTransfers(ctx, operations.transferOperations, txsData); + _processCalls(ctx, operations, txsData); + + // Make sure we have consumed exactly the expected number of transactions + require(txsData.length == ctx.txIdx * ExchangeData.TX_DATA_AVAILABILITY_SIZE, "INVALID_NUM_TXS"); + } + + // Allows withdrawing from pending transfers that are at least MAX_AGE_PENDING_TRANSFERS old. + function withdrawFromPendingTransfers( + uint batchID, + BridgeTransfer[] calldata transfers, + uint[] calldata indices + ) + external + { + // Check if withdrawing from these transfers is possible + bytes32 hash = _hashTransfers(batchID, transfers); + require(_arePendingTransfersTooOld(hash), "TRANSFERS_NOT_TOO_OLD"); + + for (uint i = 0; i < indices.length; i++) { + uint idx = indices[i]; + + require(!withdrawn[hash][idx], "ALREADY_WITHDRAWN"); + withdrawn[hash][idx] = true; + + _transferOut( + transfers[idx].token, + transfers[idx].amount, + transfers[idx].owner + ); + } + } + + // Can be used to withdraw funds that were already deposited to the bridge, + // but need to be returned to be able to withdraw from old pending transfers. + function forceWithdraw(address[] calldata tokens) + external + payable + { + for (uint i = 0; i < tokens.length; i++) { + exchange.forceWithdraw{value: msg.value / tokens.length}( + address(this), + tokens[i], + accountID + ); + } + } + + function setConnectorTrusted( + address connector, + bool trusted + ) + external + onlyOwner + { + trustedConnectors[connector] = trusted; + emit ConnectorTrusted(connector, trusted); + } + + receive() + external + payable + {} + + // --- Internal functions --- + + function _processTransfers( + Context memory ctx, + TransferOperation[] memory operations, + bytes memory txsData + ) + internal + { + for (uint o = 0; o < operations.length; o++) { + BridgeTransfer[] memory transfers = operations[o].transfers; + + // Check if these transfers can be processed + bytes32 hash = _hashTransfers(operations[o].batchID, transfers); + require(!_arePendingTransfersTooOld(hash), "TRANSFERS_TOO_OLD"); + + // Mark transfers as completed + pendingTransfers[hash] = 0; + + // Verify transfers + address token = address(0); + uint16 tokenID = 0; + TransferTransaction.Transfer memory transfer; + for (uint i = 0; i < transfers.length; i++) { + TransferTransaction.readTx(txsData, ctx.txIdx++ * ExchangeData.TX_DATA_AVAILABILITY_SIZE, transfer); + + if (transfer.tokenID != tokenID) { + tokenID = transfer.tokenID; + token = exchange.getTokenAddress(tokenID); + } + + require( + transfer.fromAccountID == ctx.accountID && + transfer.to == transfers[i].owner && + transfer.from == address(this) && + transfer.tokenID == tokenID && + transfer.feeTokenID == tokenID && + _isAlmostEqualAmount(transfer.amount, transfers[i].amount) && + transfer.fee <= (uint(transfer.amount).mul(MAX_FEE_BIPS) / 10000), + "INVALID_DISTRIBUTE_TRANSFER_TX_DATA" + ); + } + } + } + + function _processCalls( + Context memory ctx, + BridgeOperations memory operations, + bytes memory txsData + ) + internal + { + ConnectorCalls[] memory connectorCalls = operations.connectorCalls; + TokenData[] memory tokens = operations.tokens; + + uint[] memory withdrawalAmounts = new uint[](tokens.length); + for (uint i = 0; i < tokens.length; i++) { + withdrawalAmounts[i] = tokens[i].amount; + } + + // Calls + TransferTransaction.Transfer memory transfer; + SignatureVerificationTransaction.SignatureVerification memory verification; + for (uint c = 0; c < connectorCalls.length; c++) { + + // Verify token data + require(connectorCalls[c].tokens.length == tokens.length, "INVALID_DATA"); + for (uint i = 0; i < tokens.length; i++) { + require(tokens[i].token == connectorCalls[c].tokens[i].token, "INVALID_CONNECTOR_TOKEN_DATA"); + tokens[i].amount = tokens[i].amount.sub(connectorCalls[c].tokens[i].amount); + } + + // Call the connector + _connectorCall(connectorCalls[c]); + + // Verify the transactions + for (uint g = 0; g < connectorCalls[c].groups.length; g++) { + for (uint i = 0; i < connectorCalls[c].groups[g].calls.length; i++) { + TransferTransaction.readTx(txsData, ctx.txIdx++ * ExchangeData.TX_DATA_AVAILABILITY_SIZE, transfer); + SignatureVerificationTransaction.readTx(txsData, ctx.txIdx++ * ExchangeData.TX_DATA_AVAILABILITY_SIZE, verification); + + BridgeCall memory call = connectorCalls[c].groups[g].calls[i]; + + // Verify the transaction data + require( + transfer.toAccountID == ctx.accountID && + transfer.to == address(this) && + transfer.fee <= call.maxFee, + "INVALID_COLLECT_TRANSFER" + ); + + HashAuxData memory hashAuxData = HashAuxData( + connectorCalls[c].connector, + connectorCalls[c].groups[g].groupData + ); + + bytes32 txHash = _hashTx( + ctx.domainSeparator, + transfer, + call, + hashAuxData + ); + + // Verify that the hash was signed on L2 + require( + verification.owner == transfer.from && + verification.data == uint(txHash) >> 3, + "INVALID_OFFCHAIN_L2_APPROVAL" + ); + + for (uint t = 0; t < tokens.length; t++) { + if (transfer.tokenID == tokens[t].tokenID) { + connectorCalls[c].tokens[t].amount = connectorCalls[c].tokens[t].amount.sub(transfer.amount); + } + } + } + } + + // Make sure token amounts passed in match + for (uint i = 0; i < tokens.length; i++) { + require(connectorCalls[c].tokens[i].amount == 0, "INVALID_BRIDGE_DATA"); + } + } + + // Verify the withdrawals + WithdrawTransaction.Withdrawal memory withdrawal; + for (uint i = 0; i < tokens.length; i++) { + // Verify token data + require( + tokens[i].token == exchange.getTokenAddress(tokens[i].tokenID), + "INVALID_TOKEN_DATA" + ); + + // Verify withdrawal data + WithdrawTransaction.readTx(txsData, ctx.txIdx++ * ExchangeData.TX_DATA_AVAILABILITY_SIZE, withdrawal); + bytes20 onchainDataHash = WithdrawTransaction.hashOnchainData( + 0, // Withdrawal needs to succeed no matter the gas coast + address(this), // Withdraw to this contract first + new bytes(0) + ); + require( + withdrawal.onchainDataHash == onchainDataHash && + withdrawal.tokenID == tokens[i].tokenID && + withdrawal.amount == withdrawalAmounts[i] && + withdrawal.fee == 0, + "INVALID_BRIDGE_WITHDRAWAL_TX_DATA" + ); + + require(tokens[i].amount == 0, "INVALID_BRIDGE_TOKEN_DATA"); + } + } + + function _storeTransfers(BridgeTransfer[] memory transfers) + internal + { + uint batchID = batchIDGenerator++; + + // Store transfers to distribute at a later time + bytes32 hash = _hashTransfers(batchID, transfers); + require(pendingTransfers[hash] == 0, "DUPLICATE_BATCH"); + pendingTransfers[hash] = block.timestamp; + + // Log transfers to do + emit Transfers(batchID, transfers); + } + + function _deposit( + address from, + address token, + uint96 amount + ) + internal + { + if(amount > 0) { + // Do the token transfer directly to the exchange + uint ethValue = (token == address(0)) ? amount : 0; + exchange.deposit{value: ethValue}(from, address(this), token, amount, new bytes(0)); + } + } + + function _connectorCall(ConnectorCalls memory connectorCalls) + internal + { + // Do the call + bool success; + try Bridge(this)._executeConnectorCall(connectorCalls) { + success = true; + emit BridgeCallSuccess(keccak256(abi.encode(connectorCalls))); + } catch Error(string memory reason) { + success = false; + emit BridgeCallFailed(keccak256(abi.encode(connectorCalls)), reason); + } catch { + success = false; + emit BridgeCallFailed(keccak256(abi.encode(connectorCalls)), "unknown"); + } + + // If the call failed return funds to all users + if (!success) { + for (uint g = 0; g < connectorCalls.groups.length; g++) { + BridgeTransfer[] memory transfersOut = new BridgeTransfer[](connectorCalls.groups[g].calls.length); + for (uint i = 0; i < connectorCalls.groups[g].calls.length; i++) { + transfersOut[i] = BridgeTransfer({ + owner: connectorCalls.groups[g].calls[i].owner, + token: connectorCalls.groups[g].calls[i].token, + amount: connectorCalls.groups[g].calls[i].amount + }); + } + _storeTransfers(transfersOut); + } + } + } + + function _executeConnectorCall(ConnectorCalls calldata connectorCalls) + external + { + require(msg.sender == address(this), "UNAUTHORIZED"); + require(connectorCalls.connector != address(this), "INVALID_CONNECTOR"); + + bool trusted = trustedConnectors[connectorCalls.connector]; + + if (trusted) { + // Execute the logic using a delegate so no extra transfers are needed + + // Do the delegate call + bytes memory txData = abi.encodeWithSelector( + IBridgeConnector.processCalls.selector, + connectorCalls + ); + (bool success, bytes memory returnData) = connectorCalls.connector.delegatecall(txData); + if (!success) { + assembly { revert(add(returnData, 32), mload(returnData)) } + } + // TODO: maybe return transfers here to batch all of them together in a single `deposit` call across all tursted connectors. + } else { + // Transfer funds to the external contract with a real call, so the connector doesn't have to be trusted at all. + + // Transfer funds to the connector contract + uint ethValue = 0; + for (uint i = 0; i < connectorCalls.tokens.length; i++) { + if (connectorCalls.tokens[i].amount > 0) { + if (connectorCalls.tokens[i].token != address(0)) { + connectorCalls.tokens[i].token.safeTransferAndVerify(connectorCalls.connector, connectorCalls.tokens[i].amount); + } else { + ethValue = ethValue.add(connectorCalls.tokens[i].amount); + } + } + } + + // Do the call + IBridgeConnector(connectorCalls.connector).processCalls{value: ethValue}(connectorCalls); + } + } + + function _transferOut( + address token, + uint amount, + address to + ) + internal + { + if (token == address(0)) { + to.sendETHAndVerify(amount, gasleft()); + } else { + token.safeTransferAndVerify(to, amount); + } + } + + function _isAlmostEqualAmount( + uint96 amount, + uint96 targetAmount + ) + internal + pure + returns (bool) + { + if (targetAmount == 0) { + return amount == 0; + } else { + // Max rounding error for a float24 is 2/100000 + // But relayer may use float rounding multiple times + // so the range is expanded to [100000 - 8, 100000 + 0] + uint ratio = (uint(amount) * 100000) / uint(targetAmount); + return (100000 - 8) <= ratio && ratio <= (100000 + 0); + } + } + + function _hashTransfers( + uint batchID, + BridgeTransfer[] memory transfers + ) + internal + pure + returns (bytes32) + { + return keccak256(abi.encode(batchID, transfers)); + } + + function _arePendingTransfersTooOld(bytes32 hash) + internal + view + returns (bool) + { + uint timestamp = pendingTransfers[hash]; + require(timestamp != 0, "UNKNOWN_TRANSFERS"); + return block.timestamp > timestamp + MAX_AGE_PENDING_TRANSFERS; + } + + function _hashTx( + bytes32 _DOMAIN_SEPARATOR, + TransferTransaction.Transfer memory transfer, + BridgeCall memory call, + HashAuxData memory hashAuxData + ) + internal + pure + returns (bytes32) + { + return EIP712.hashPacked( + _DOMAIN_SEPARATOR, + keccak256( + abi.encode( + BRIDGE_CALL_TYPEHASH, + transfer.from, + transfer.to, + transfer.tokenID, + transfer.amount, + transfer.feeTokenID, + call.maxFee, + transfer.storageID, + call.minGas, + hashAuxData.connector, + keccak256(hashAuxData.groupData), + keccak256(call.userData) + ) + ) + ); + } + + function encode(BridgeOperations calldata operations) + external + pure + {} +} diff --git a/packages/loopring_v3/contracts/aux/bridge/BridgeData.sol b/packages/loopring_v3/contracts/aux/bridge/BridgeData.sol new file mode 100644 index 000000000..63f1a347f --- /dev/null +++ b/packages/loopring_v3/contracts/aux/bridge/BridgeData.sol @@ -0,0 +1,54 @@ +// SPDX-License-Identifier: Apache-2.0 +// Copyright 2017 Loopring Technology Limited. +pragma solidity ^0.7.0; +pragma experimental ABIEncoderV2; + +struct BridgeTransfer +{ + address owner; + address token; + uint96 amount; +} + +struct TokenData +{ + address token; + uint16 tokenID; + uint amount; +} + +struct BridgeCall +{ + address owner; + address token; + uint96 amount; + bytes userData; + uint minGas; + uint maxFee; +} + +struct ConnectorGroup +{ + bytes groupData; + BridgeCall[] calls; +} + +struct ConnectorCalls +{ + address connector; + ConnectorGroup[] groups; + TokenData[] tokens; +} + +struct TransferOperation +{ + uint batchID; + BridgeTransfer[] transfers; +} + +struct BridgeOperations +{ + TransferOperation[] transferOperations; + ConnectorCalls[] connectorCalls; + TokenData[] tokens; +} \ No newline at end of file diff --git a/packages/loopring_v3/contracts/aux/bridge/IBridge.sol b/packages/loopring_v3/contracts/aux/bridge/IBridge.sol new file mode 100644 index 000000000..8ec76b6d6 --- /dev/null +++ b/packages/loopring_v3/contracts/aux/bridge/IBridge.sol @@ -0,0 +1,17 @@ +// SPDX-License-Identifier: Apache-2.0 +// Copyright 2017 Loopring Technology Limited. +pragma solidity ^0.7.0; +pragma experimental ABIEncoderV2; + +import "./BridgeData.sol"; + + +interface IBridge +{ + function batchDeposit( + address from, + BridgeTransfer[] calldata deposits + ) + external + payable; +} \ No newline at end of file diff --git a/packages/loopring_v3/contracts/aux/bridge/IBridgeConnector.sol b/packages/loopring_v3/contracts/aux/bridge/IBridgeConnector.sol new file mode 100644 index 000000000..858c84b24 --- /dev/null +++ b/packages/loopring_v3/contracts/aux/bridge/IBridgeConnector.sol @@ -0,0 +1,14 @@ +// SPDX-License-Identifier: Apache-2.0 +// Copyright 2017 Loopring Technology Limited. +pragma solidity ^0.7.0; +pragma experimental ABIEncoderV2; + +import "./BridgeData.sol"; + + +interface IBridgeConnector +{ + function processCalls(ConnectorCalls calldata connectorCalls) + external + payable; +} \ No newline at end of file diff --git a/packages/loopring_v3/contracts/core/impl/libexchange/ExchangeBlocks.sol b/packages/loopring_v3/contracts/core/impl/libexchange/ExchangeBlocks.sol index 967aa0602..76b05fc4f 100644 --- a/packages/loopring_v3/contracts/core/impl/libexchange/ExchangeBlocks.sol +++ b/packages/loopring_v3/contracts/core/impl/libexchange/ExchangeBlocks.sol @@ -236,9 +236,9 @@ library ExchangeBlocks minTxIndex = txIndex + 1; - if (approved) { + /*if (approved) { continue; - } + }*/ // Get the transaction data _block.data.readTransactionData(txIndex, _block.blockSize, txData); @@ -249,6 +249,10 @@ library ExchangeBlocks ); uint txDataOffset = 0; + if (approved && txType != ExchangeData.TransactionType.WITHDRAWAL) { + continue; + } + if (txType == ExchangeData.TransactionType.DEPOSIT) { DepositTransaction.process( S, @@ -263,7 +267,8 @@ library ExchangeBlocks ctx, txData, txDataOffset, - auxData + auxData, + approved ); } else if (txType == ExchangeData.TransactionType.TRANSFER) { TransferTransaction.process( diff --git a/packages/loopring_v3/contracts/core/impl/libtransactions/WithdrawTransaction.sol b/packages/loopring_v3/contracts/core/impl/libtransactions/WithdrawTransaction.sol index a4f48df4d..7c9502113 100644 --- a/packages/loopring_v3/contracts/core/impl/libtransactions/WithdrawTransaction.sol +++ b/packages/loopring_v3/contracts/core/impl/libtransactions/WithdrawTransaction.sol @@ -73,7 +73,8 @@ library WithdrawTransaction ExchangeData.BlockContext memory ctx, bytes memory data, uint offset, - bytes memory auxiliaryData + bytes memory auxiliaryData, + bool approved ) internal { @@ -112,8 +113,10 @@ library WithdrawTransaction // Check appproval onchain // Calculate the tx hash bytes32 txHash = hashTx(ctx.DOMAIN_SEPARATOR, withdrawal); - // Check onchain authorization - S.requireAuthorizedTx(withdrawal.from, auxData.signature, txHash); + if (!approved) { + // Check onchain authorization + S.requireAuthorizedTx(withdrawal.from, auxData.signature, txHash); + } } else if (withdrawal.withdrawalType == 2 || withdrawal.withdrawalType == 3) { // Forced withdrawals cannot make use of certain features because the // necessary data is not authorized by the account owner. diff --git a/packages/loopring_v3/contracts/test/TestSwapper.sol b/packages/loopring_v3/contracts/test/TestSwapper.sol index cee448006..b3afa3b2a 100644 --- a/packages/loopring_v3/contracts/test/TestSwapper.sol +++ b/packages/loopring_v3/contracts/test/TestSwapper.sol @@ -1,8 +1,8 @@ // SPDX-License-Identifier: Apache-2.0 // Copyright 2017 Loopring Technology Limited. pragma solidity ^0.7.0; +pragma experimental ABIEncoderV2; -import "../core/iface/IExchangeV3.sol"; import "../lib/AddressUtil.sol"; import "../lib/ERC20SafeTransfer.sol"; import "../lib/MathUint.sol"; diff --git a/packages/loopring_v3/contracts/test/TestSwappperBridgeConnector.sol b/packages/loopring_v3/contracts/test/TestSwappperBridgeConnector.sol new file mode 100644 index 000000000..2066ee525 --- /dev/null +++ b/packages/loopring_v3/contracts/test/TestSwappperBridgeConnector.sol @@ -0,0 +1,89 @@ +// SPDX-License-Identifier: Apache-2.0 +// Copyright 2017 Loopring Technology Limited. +pragma solidity ^0.7.0; +pragma experimental ABIEncoderV2; + +import "./TestSwapper.sol"; +import "../core/iface/IExchangeV3.sol"; +import "../lib/AddressUtil.sol"; +import "../lib/ERC20.sol"; +import "../lib/ERC20SafeTransfer.sol"; +import "../lib/MathUint.sol"; +import "../thirdparty/SafeCast.sol"; +import "../aux/bridge/IBridge.sol"; +import "../aux/bridge/IBridgeConnector.sol"; + + +/// @author Brecht Devos - +contract TestSwappperBridgeConnector is IBridgeConnector +{ + using AddressUtil for address payable; + using ERC20SafeTransfer for address; + using MathUint for uint; + using SafeCast for uint; + + struct Settings + { + address tokenIn; + address tokenOut; + } + + IExchangeV3 public immutable exchange; + IDepositContract public immutable depositContract; + + TestSwapper public immutable testSwapper; + + constructor( + IExchangeV3 _exchange, + TestSwapper _testSwapper + ) + { + exchange = _exchange; + depositContract = _exchange.getDepositContract(); + + testSwapper = _testSwapper; + } + + function processCalls(ConnectorCalls calldata connectorCalls) + external + payable + override + { + for (uint g = 0; g < connectorCalls.groups.length; g++) { + Settings memory settings = abi.decode(connectorCalls.groups[g].groupData, (Settings)); + + BridgeCall[] calldata calls = connectorCalls.groups[g].calls; + + uint amountIn = 0; + for (uint i = 0; i < calls.length; i++) { + require(calls[i].token == settings.tokenIn, "INVALID_TOKEN"); + amountIn = amountIn.add(calls[i].amount); + } + + uint ethValueOut = (settings.tokenIn == address(0)) ? amountIn : 0; + uint amountOut = testSwapper.swap{value: ethValueOut}(amountIn); + + BridgeTransfer[] memory transfers = new BridgeTransfer[](calls.length); + for (uint i = 0; i < transfers.length; i++) { + transfers[i] = BridgeTransfer({ + owner: transfers[i].owner, + token: settings.tokenOut, + amount: (uint(transfers[i].amount).mul(amountOut) / amountIn).toUint96() + }); + } + + uint ethValueIn = 0; + if (settings.tokenOut == address(0)) { + ethValueIn = amountOut; + } else { + ERC20(settings.tokenOut).approve(address(depositContract), amountOut); + } + IBridge(msg.sender).batchDeposit{value: ethValueIn}(address(this), transfers); + } + } + + receive() + external + payable + {} +} \ No newline at end of file diff --git a/packages/loopring_v3/test/testBridge.ts b/packages/loopring_v3/test/testBridge.ts new file mode 100644 index 000000000..801514ca6 --- /dev/null +++ b/packages/loopring_v3/test/testBridge.ts @@ -0,0 +1,549 @@ +import BN = require("bn.js"); +import { AmmPool, Permit, PermitUtils } from "./ammUtils"; +import { expectThrow } from "./expectThrow"; +import { Constants } from "loopringV3.js"; +import { + BalanceSnapshot, + ExchangeTestUtil, + TransferUtils +} from "./testExchangeUtil"; +import { AuthMethod, Transfer } from "./types"; +import { SignatureType, sign, verifySignature } from "../util/Signature"; +import * as sigUtil from "eth-sig-util"; + +const AgentRegistry = artifacts.require("AgentRegistry"); + +const BridgeContract = artifacts.require("Bridge"); +const TestSwapper = artifacts.require("TestSwapper"); +const TestSwappperBridgeConnector = artifacts.require( + "TestSwappperBridgeConnector" +); + +export interface BridgeTransfer { + owner: string; + token: string; + amount: string; +} + +export interface TokenData { + token: string; + tokenID: number; + amount: string; +} + +export interface BridgeCall { + owner: string; + token: string; + amount: string; + userData: string; + minGas: number; + maxFee: string; +} + +export interface ConnectorGroup { + groupData: string; + calls: BridgeCall[]; +} + +export interface ConnectorCalls { + connector: string; + groups: ConnectorGroup[]; + tokens: TokenData[]; +} + +export interface TransferOperation { + batchID: number; + transfers: BridgeTransfer[]; +} + +export interface BridgeOperations { + transferOperations: TransferOperation[]; + connectorCalls: ConnectorCalls[]; + tokens: TokenData[]; +} + +export interface BridgeCallWrapper { + transfer: Transfer; + connector: string; + groupData: string; + call: BridgeCall; +} + +export namespace CollectTransferUtils { + export function toTypedData( + callWrapper: BridgeCallWrapper, + verifyingContract: string + ) { + const typedData = { + types: { + EIP712Domain: [ + { name: "name", type: "string" }, + { name: "version", type: "string" }, + { name: "chainId", type: "uint256" }, + { name: "verifyingContract", type: "address" } + ], + BridgeCall: [ + { name: "from", type: "address" }, + { name: "to", type: "address" }, + { name: "tokenID", type: "uint16" }, + { name: "amount", type: "uint96" }, + { name: "feeTokenID", type: "uint16" }, + { name: "maxFee", type: "uint96" }, + { name: "storageID", type: "uint32" }, + { name: "minGas", type: "uint32" }, + { name: "connector", type: "address" }, + { name: "groupData", type: "bytes" }, + { name: "userData", type: "bytes" } + ] + }, + primaryType: "BridgeCall", + domain: { + name: "Bridge", + version: "1.0", + chainId: new BN(/*await web3.eth.net.getId()*/ 1), + verifyingContract + }, + message: { + from: callWrapper.transfer.from, + to: callWrapper.transfer.to, + tokenID: callWrapper.transfer.tokenID, + amount: callWrapper.transfer.amount, + feeTokenID: callWrapper.transfer.feeTokenID, + maxFee: callWrapper.call.maxFee, + storageID: callWrapper.transfer.storageID, + minGas: callWrapper.call.minGas, + connector: callWrapper.connector, + groupData: callWrapper.groupData, + userData: callWrapper.call.userData + } + }; + return typedData; + } + + export function getHash( + callWrapper: BridgeCallWrapper, + verifyingContract: string + ) { + const typedData = this.toTypedData(callWrapper, verifyingContract); + return sigUtil.TypedDataUtils.sign(typedData); + } +} + +export class Bridge { + public ctx: ExchangeTestUtil; + public contract: any; + public address: string; + + public accountID: number; + + constructor(ctx: ExchangeTestUtil) { + this.ctx = ctx; + } + + public async setup() { + this.accountID = this.ctx.accounts[this.ctx.exchangeId].length; + + this.contract = await BridgeContract.new( + this.ctx.exchange.address, + this.accountID + ); + + // Create the Bridge account + const owner = this.contract.address; + const deposit = await this.ctx.deposit( + this.ctx.testContext.orderOwners[0], + owner, + "ETH", + new BN(1), + { autoSetKeys: false } + ); + assert(deposit.accountID === this.accountID, "unexpected accountID"); + + this.address = this.contract.address; + } +} + +contract("Bridge", (accounts: string[]) => { + let ctx: ExchangeTestUtil; + + let agentRegistry: any; + let registryOwner: string; + + let swapper: any; + let testSwappperBridgeConnector: any; + + let tokenIn: string = "ETH"; + let tokenOut: string = "LRC"; + let rate: BN = new BN(web3.utils.toWei("1", "ether")); + + const amountIn = new BN(web3.utils.toWei("10", "ether")); + const tradeAmountInA = amountIn.div(new BN(4)); + const tradeAmountInB = amountIn.div(new BN(4)).mul(new BN(3)); + + let relayer: string; + let ownerA: string; + let ownerB: string; + let ownerC: string; + + const setupBridge = async () => { + const bridge = new Bridge(ctx); + await bridge.setup(); + + await agentRegistry.registerUniversalAgent(bridge.address, true, { + from: registryOwner + }); + + swapper = await TestSwapper.new( + ctx.getTokenAddress(tokenIn), + ctx.getTokenAddress(tokenOut), + rate + ); + + await ctx.transferBalance( + swapper.address, + tokenOut, + new BN(web3.utils.toWei("20", "ether")) + ); + + testSwappperBridgeConnector = await TestSwappperBridgeConnector.new( + ctx.exchange.address, + swapper.address + ); + + return bridge; + }; + + const encodeTransfers = (transfers: BridgeTransfer[]) => { + return web3.eth.abi.encodeParameter( + { + "struct BridgeTransfer[]": { + owner: "address", + token: "address", + amount: "uint96" + } + }, + transfers + ); + }; + + const encodeBridgeOperations = ( + bridge: Bridge, + bridgeOperations: BridgeOperations + ) => { + //console.log(bridgeOperations); + + const data = bridge.contract.contract.methods + .encode(bridgeOperations) + .encodeABI(); + + //console.log(data); + + return "0x" + data.slice(2 + (4 + 0) * 2); + + /*const encodedDeposits = web3.eth.abi.encodeParameter( + { + "struct BridgeTransfer[]": { + owner: "address", + token: "address", + amount: "uint96" + } + }, + bridgeOperations.transfers + );*/ + + /*const encodedBridgeOperations = web3.eth.abi.encodeParameter( + { + "BridgeConfig": { + "BridgeTransfer[]": { + owner: "address", + token: "address", + amount: "uint96" + }, + "struct ConnectorCalls[]": { + connector: "address", + "struct ConnectorGroup[]": { + groupData: "bytes", + "struct BridgeCall[]": { + owner: "address", + token: "address", + amount: "uint256", + minGas: "uint256", + maxFee: "uint256", + userData: "bytes" + } + }, + "struct TokenData[]": { + token: "address", + tokenID: "uint16", + amount: "uint256" + } + }, + "struct TokenData[]": { + token: "address", + tokenID: "uint16", + amount: "uint256" + } + } + }, + { + "BridgeTransfer[]": bridgeOperations.transfers + } + ); + return encodedBridgeOperations;*/ + }; + + before(async () => { + ctx = new ExchangeTestUtil(); + await ctx.initialize(accounts); + + relayer = ctx.testContext.orderOwners[11]; + ownerA = ctx.testContext.orderOwners[12]; + ownerB = ctx.testContext.orderOwners[13]; + ownerC = ctx.testContext.orderOwners[14]; + }); + + after(async () => { + await ctx.stop(); + }); + + beforeEach(async () => { + // Fresh Exchange for each test + await ctx.createExchange(ctx.testContext.stateOwners[0], { + setupTestState: true, + deterministic: true + }); + + // Create the agent registry + registryOwner = accounts[7]; + agentRegistry = await AgentRegistry.new({ from: registryOwner }); + + // Register it on the exchange contract + const wrapper = await ctx.contracts.ExchangeV3.at(ctx.operator.address); + await wrapper.setAgentRegistry(agentRegistry.address, { + from: ctx.exchangeOwner + }); + }); + + describe.only("Bridge", function() { + this.timeout(0); + + it("Batch deposit", async () => { + const bridge = await setupBridge(); + + const deposits: BridgeTransfer[] = []; + deposits.push({ + owner: ownerA, + token: Constants.zeroAddress, + amount: web3.utils.toWei("1", "ether") + }); + deposits.push({ + owner: ownerB, + token: Constants.zeroAddress, + amount: web3.utils.toWei("2", "ether") + }); + deposits.push({ + owner: ownerC, + token: Constants.zeroAddress, + amount: web3.utils.toWei("3", "ether") + }); + + await bridge.contract.batchDeposit(relayer, deposits, { + from: relayer, + value: new BN(web3.utils.toWei("6", "ether")) + }); + const event = await ctx.assertEventEmitted(bridge.contract, "Transfers"); + + // Process the single deposit + await ctx.requestDeposit( + bridge.address, + "ETH", + new BN(web3.utils.toWei("6", "ether")) + ); + + await ctx.submitTransactions(); + await ctx.submitPendingBlocks(); + + const blockCallback = ctx.addBlockCallback(bridge.address); + + for (const deposit of deposits) { + await ctx.transfer( + bridge.address, + deposit.owner, + deposit.token, + new BN(deposit.amount), + deposit.token, + new BN(0), + { + authMethod: AuthMethod.NONE, + amountToDeposit: new BN(0), + feeToDeposit: new BN(0), + transferToNew: true + } + ); + } + + const bridgeOperations: BridgeOperations = { + transferOperations: [ + { batchID: event.batchID.toNumber(), transfers: deposits } + ], + connectorCalls: [], + tokens: [] + }; + + // Set the pool transaction data on the callback + blockCallback.auxiliaryData = encodeBridgeOperations( + bridge, + bridgeOperations + ); + blockCallback.numTxs = deposits.length; + + await ctx.submitTransactions(); + await ctx.submitPendingBlocks(); + }); + + it("Batch call", async () => { + const bridge = await setupBridge(); + + const totalETH = new BN(web3.utils.toWei("6", "ether")); + + const withdrawals: BridgeTransfer[] = []; + withdrawals.push({ + owner: ownerA, + token: Constants.zeroAddress, + amount: web3.utils.toWei("1", "ether") + }); + withdrawals.push({ + owner: ownerB, + token: Constants.zeroAddress, + amount: web3.utils.toWei("2", "ether") + }); + withdrawals.push({ + owner: ownerC, + token: Constants.zeroAddress, + amount: web3.utils.toWei("3", "ether") + }); + + for (const withdrawal of withdrawals) { + await ctx.deposit( + withdrawal.owner, + withdrawal.owner, + withdrawal.token, + new BN(withdrawal.amount) + ); + } + + await ctx.submitTransactions(); + await ctx.submitPendingBlocks(); + + await bridge.contract.setConnectorTrusted( + testSwappperBridgeConnector.address, + true + ); + + const tokens: TokenData[] = []; + tokens.push({ + token: Constants.zeroAddress, + tokenID: 0, + amount: totalETH.toString(10) + }); + + const blockCallback = ctx.addBlockCallback(bridge.address); + + const encodedSettings = web3.eth.abi.encodeParameter( + { + "struct Settings": { + tokenIn: "address", + tokenOut: "address" + } + }, + { + tokenIn: ctx.getTokenAddress(tokenIn), + tokenOut: ctx.getTokenAddress(tokenOut) + } + ); + + const connectorGroup: ConnectorGroup = { + groupData: encodedSettings, + calls: [] + }; + + const connectorCalls: ConnectorCalls = { + connector: testSwappperBridgeConnector.address, + groups: [connectorGroup], + tokens + }; + + for (const withdrawal of withdrawals) { + const transfer = await ctx.transfer( + withdrawal.owner, + bridge.address, + withdrawal.token, + new BN(withdrawal.amount), + withdrawal.token, + new BN(0), + { + authMethod: AuthMethod.NONE, + amountToDeposit: new BN(0), + feeToDeposit: new BN(0) + } + ); + + const call: BridgeCall = { + owner: withdrawal.owner, + token: withdrawal.token, + amount: withdrawal.amount, + minGas: 1000000, + maxFee: "0", + userData: "0x" + }; + const bridgeCallWrapper: BridgeCallWrapper = { + transfer, + call, + connector: connectorCalls.connector, + groupData: connectorGroup.groupData + }; + const txHash = CollectTransferUtils.getHash( + bridgeCallWrapper, + bridge.address + ); + await ctx.requestSignatureVerification( + withdrawal.owner, + ctx.hashToFieldElement("0x" + txHash.toString("hex")) + ); + + connectorGroup.calls.push(call); + } + + await ctx.requestWithdrawal( + bridge.address, + "ETH", + totalETH, + "ETH", + new BN(0), + { + authMethod: AuthMethod.NONE + } + ); + + const bridgeOperations: BridgeOperations = { + transferOperations: [], + connectorCalls: [connectorCalls], + tokens + }; + + // Set the pool transaction data on the callback + blockCallback.auxiliaryData = encodeBridgeOperations( + bridge, + bridgeOperations + ); + blockCallback.numTxs = withdrawals.length * 2 + 1; + + await ctx.submitTransactions(); + await ctx.submitPendingBlocks(); + + await ctx.assertEventEmitted(bridge.contract, "BridgeCallSuccess"); + + //assert(false); + }); + }); +}); diff --git a/packages/loopring_v3/test/testExchangeUtil.ts b/packages/loopring_v3/test/testExchangeUtil.ts index 71a0ea136..1ea826f66 100644 --- a/packages/loopring_v3/test/testExchangeUtil.ts +++ b/packages/loopring_v3/test/testExchangeUtil.ts @@ -1907,8 +1907,13 @@ export class ExchangeTestUtil { for (const auxiliaryData of block.auxiliaryData) { if (auxiliaryData[0] === Number(blockCallback.txIdx) + i) { auxiliaryData[1] = true; - // No auxiliary data needed for the tx - auxiliaryData[2] = "0x"; + if ( + block.internalBlock.transactions[auxiliaryData[0]].txType !== + "Withdraw" + ) { + // No auxiliary data needed for the tx + auxiliaryData[2] = "0x"; + } } } } From 5560975b63b2ec52777ad14463ede3f8698b3deb Mon Sep 17 00:00:00 2001 From: Brechtpd Date: Tue, 16 Mar 2021 00:00:59 +0100 Subject: [PATCH 06/15] Small improvements --- .../contracts/aux/bridge/Bridge.sol | 26 +++++- .../contracts/aux/bridge/BridgeData.sol | 2 + .../contracts/aux/bridge/IBridgeConnector.sol | 5 + .../test/TestSwappperBridgeConnector.sol | 11 +++ packages/loopring_v3/test/testBridge.ts | 93 ++++++++++++++----- 5 files changed, 111 insertions(+), 26 deletions(-) diff --git a/packages/loopring_v3/contracts/aux/bridge/Bridge.sol b/packages/loopring_v3/contracts/aux/bridge/Bridge.sol index f49bfd689..052a5b9eb 100644 --- a/packages/loopring_v3/contracts/aux/bridge/Bridge.sol +++ b/packages/loopring_v3/contracts/aux/bridge/Bridge.sol @@ -49,6 +49,7 @@ contract Bridge is Claimable uint public constant MAX_NUM_TRANSACTIONS_IN_BLOCK = 386; uint public constant MAX_AGE_PENDING_TRANSFERS = 7 days; uint public constant MAX_FEE_BIPS = 25; // 0.25% + uint public constant GAS_LIMIT_CHECK_GAS_LIMIT = 10000; IExchangeV3 public immutable exchange; uint32 public immutable accountID; @@ -103,6 +104,7 @@ contract Bridge is Claimable // Needs to be possible to do all transfers in a single block require(deposits.length <= MAX_NUM_TRANSACTIONS_IN_BLOCK, "MAX_DEPOSITS_EXCEEDED"); + // TODO: compare gas costs with a version that doesn't depend on a sorted list for best performance uint totalETH = 0; address token = address(0); uint96 total = 0; @@ -113,6 +115,8 @@ contract Bridge is Claimable if(token != deposits[i].token) { _deposit(from, token, total); totalETH = (token == address(0)) ? totalETH.add(total) : totalETH; + token = deposits[i].token; + total = 0; } total = total.add(deposits[i].amount); @@ -315,6 +319,8 @@ contract Bridge is Claimable "INVALID_OFFCHAIN_L2_APPROVAL" ); + connectorCalls[c].totalMinGas = connectorCalls[c].totalMinGas.sub(call.minGas); + for (uint t = 0; t < tokens.length; t++) { if (transfer.tokenID == tokens[t].tokenID) { connectorCalls[c].tokens[t].amount = connectorCalls[c].tokens[t].amount.sub(transfer.amount); @@ -327,6 +333,12 @@ contract Bridge is Claimable for (uint i = 0; i < tokens.length; i++) { require(connectorCalls[c].tokens[i].amount == 0, "INVALID_BRIDGE_DATA"); } + + // Make sure the gas passed to the connector is at least the sum of all call gas min amounts. + // So calls basically "buy" a part of the total gas needed to do the batched call, + // while IBridgeConnector.getMinGasLimit() makes sure the total gas limit makes sense for the + // amount of work submitted. + require(connectorCalls[c].totalMinGas == 0, "INVALID_TOTAL_MIN_GAS"); } // Verify the withdrawals @@ -388,6 +400,13 @@ contract Bridge is Claimable function _connectorCall(ConnectorCalls memory connectorCalls) internal { + // Check if the minimum amount of gas required is achieved + try IBridgeConnector(connectorCalls.connector).getMinGasLimit{gas: GAS_LIMIT_CHECK_GAS_LIMIT}(connectorCalls) returns (uint minGasLimit) { + require(connectorCalls.gasLimit >= minGasLimit, "GAS_LIMIT_TOO_LOW"); + } catch { + // If the call failed for some reason just continue. + } + // Do the call bool success; try Bridge(this)._executeConnectorCall(connectorCalls) { @@ -437,7 +456,7 @@ contract Bridge is Claimable if (!success) { assembly { revert(add(returnData, 32), mload(returnData)) } } - // TODO: maybe return transfers here to batch all of them together in a single `deposit` call across all tursted connectors. + // TODO: maybe return transfers here to batch all of them together in a single `deposit` call across all trusted connectors. } else { // Transfer funds to the external contract with a real call, so the connector doesn't have to be trusted at all. @@ -454,7 +473,7 @@ contract Bridge is Claimable } // Do the call - IBridgeConnector(connectorCalls.connector).processCalls{value: ethValue}(connectorCalls); + IBridgeConnector(connectorCalls.connector).processCalls{value: ethValue, gas: connectorCalls.gasLimit}(connectorCalls); } } @@ -485,7 +504,8 @@ contract Bridge is Claimable } else { // Max rounding error for a float24 is 2/100000 // But relayer may use float rounding multiple times - // so the range is expanded to [100000 - 8, 100000 + 0] + // so the range is expanded to [100000 - 8, 100000 + 0], + // always rounding down. uint ratio = (uint(amount) * 100000) / uint(targetAmount); return (100000 - 8) <= ratio && ratio <= (100000 + 0); } diff --git a/packages/loopring_v3/contracts/aux/bridge/BridgeData.sol b/packages/loopring_v3/contracts/aux/bridge/BridgeData.sol index 63f1a347f..ade185d8d 100644 --- a/packages/loopring_v3/contracts/aux/bridge/BridgeData.sol +++ b/packages/loopring_v3/contracts/aux/bridge/BridgeData.sol @@ -36,6 +36,8 @@ struct ConnectorGroup struct ConnectorCalls { address connector; + uint gasLimit; + uint totalMinGas; ConnectorGroup[] groups; TokenData[] tokens; } diff --git a/packages/loopring_v3/contracts/aux/bridge/IBridgeConnector.sol b/packages/loopring_v3/contracts/aux/bridge/IBridgeConnector.sol index 858c84b24..d0d8873d6 100644 --- a/packages/loopring_v3/contracts/aux/bridge/IBridgeConnector.sol +++ b/packages/loopring_v3/contracts/aux/bridge/IBridgeConnector.sol @@ -11,4 +11,9 @@ interface IBridgeConnector function processCalls(ConnectorCalls calldata connectorCalls) external payable; + + function getMinGasLimit(ConnectorCalls calldata connectorCalls) + external + pure + returns (uint); } \ No newline at end of file diff --git a/packages/loopring_v3/contracts/test/TestSwappperBridgeConnector.sol b/packages/loopring_v3/contracts/test/TestSwappperBridgeConnector.sol index 2066ee525..81a840ef7 100644 --- a/packages/loopring_v3/contracts/test/TestSwappperBridgeConnector.sol +++ b/packages/loopring_v3/contracts/test/TestSwappperBridgeConnector.sol @@ -82,6 +82,17 @@ contract TestSwappperBridgeConnector is IBridgeConnector } } + function getMinGasLimit(ConnectorCalls calldata connectorCalls) + external + pure + override + returns (uint gasLimit) + { + for (uint g = 0; g < connectorCalls.groups.length; g++) { + gasLimit += 100000 + 2500 * connectorCalls.groups[g].calls.length; + } + } + receive() external payable diff --git a/packages/loopring_v3/test/testBridge.ts b/packages/loopring_v3/test/testBridge.ts index 801514ca6..9f4a1df71 100644 --- a/packages/loopring_v3/test/testBridge.ts +++ b/packages/loopring_v3/test/testBridge.ts @@ -47,6 +47,8 @@ export interface ConnectorGroup { export interface ConnectorCalls { connector: string; + gasLimit: number; + totalMinGas: number; groups: ConnectorGroup[]; tokens: TokenData[]; } @@ -324,41 +326,79 @@ contract("Bridge", (accounts: string[]) => { }); }); - describe.only("Bridge", function() { + describe("Bridge", function() { this.timeout(0); - it("Batch deposit", async () => { + it.only("Batch deposit", async () => { const bridge = await setupBridge(); const deposits: BridgeTransfer[] = []; deposits.push({ owner: ownerA, - token: Constants.zeroAddress, + token: ctx.getTokenAddress("ETH"), amount: web3.utils.toWei("1", "ether") }); deposits.push({ owner: ownerB, - token: Constants.zeroAddress, - amount: web3.utils.toWei("2", "ether") + token: ctx.getTokenAddress("ETH"), + amount: web3.utils.toWei("2.1265", "ether") }); deposits.push({ - owner: ownerC, - token: Constants.zeroAddress, - amount: web3.utils.toWei("3", "ether") + owner: ownerB, + token: ctx.getTokenAddress("LRC"), + amount: web3.utils.toWei("26.2154454177", "ether") + }); + deposits.push({ + owner: ownerA, + token: ctx.getTokenAddress("LRC"), + amount: web3.utils.toWei("1028.2154454177", "ether") }); + deposits.push({ + owner: ownerB, + token: ctx.getTokenAddress("ETH"), + amount: web3.utils.toWei("1.15484511245", "ether") + }); + deposits.push({ + owner: ownerB, + token: ctx.getTokenAddress("LRC"), + amount: web3.utils.toWei("12545.15484511245", "ether") + }); + deposits.push({ + owner: ownerB, + token: ctx.getTokenAddress("WETH"), + amount: web3.utils.toWei("12.15484511245", "ether") + }); + + const tokens: Map = new Map(); + for (const deposit of deposits) { + if (!tokens.has(deposit.token)) { + tokens.set(deposit.token, new BN(0)); + } + tokens.set( + deposit.token, + tokens.get(deposit.token).add(new BN(deposit.amount)) + ); + } + + let ethValue = new BN(0); + for (const [token, amount] of tokens.entries()) { + if (token === Constants.zeroAddress) { + ethValue = tokens.get(Constants.zeroAddress); + } else { + await ctx.setBalanceAndApprove(relayer, token, amount); + } + } await bridge.contract.batchDeposit(relayer, deposits, { from: relayer, - value: new BN(web3.utils.toWei("6", "ether")) + value: ethValue }); const event = await ctx.assertEventEmitted(bridge.contract, "Transfers"); - // Process the single deposit - await ctx.requestDeposit( - bridge.address, - "ETH", - new BN(web3.utils.toWei("6", "ether")) - ); + // Process the deposits + for (const [token, amount] of tokens.entries()) { + await ctx.requestDeposit(bridge.address, token, amount); + } await ctx.submitTransactions(); await ctx.submitPendingBlocks(); @@ -401,7 +441,7 @@ contract("Bridge", (accounts: string[]) => { await ctx.submitPendingBlocks(); }); - it("Batch call", async () => { + it.only("Batch call", async () => { const bridge = await setupBridge(); const totalETH = new BN(web3.utils.toWei("6", "ether")); @@ -467,12 +507,6 @@ contract("Bridge", (accounts: string[]) => { calls: [] }; - const connectorCalls: ConnectorCalls = { - connector: testSwappperBridgeConnector.address, - groups: [connectorGroup], - tokens - }; - for (const withdrawal of withdrawals) { const transfer = await ctx.transfer( withdrawal.owner, @@ -499,7 +533,7 @@ contract("Bridge", (accounts: string[]) => { const bridgeCallWrapper: BridgeCallWrapper = { transfer, call, - connector: connectorCalls.connector, + connector: testSwappperBridgeConnector.address, groupData: connectorGroup.groupData }; const txHash = CollectTransferUtils.getHash( @@ -525,6 +559,19 @@ contract("Bridge", (accounts: string[]) => { } ); + let totalMinGas = 0; + for (const call of connectorGroup.calls) { + totalMinGas += call.minGas; + } + + const connectorCalls: ConnectorCalls = { + connector: testSwappperBridgeConnector.address, + gasLimit: 1000000, + totalMinGas, + groups: [connectorGroup], + tokens + }; + const bridgeOperations: BridgeOperations = { transferOperations: [], connectorCalls: [connectorCalls], From ec261bee0881ebc7b358184a0dc1081e833a4ce5 Mon Sep 17 00:00:00 2001 From: Brechtpd Date: Wed, 17 Mar 2021 06:19:18 +0100 Subject: [PATCH 07/15] Misc improvements --- .../contracts/aux/bridge/Bridge.sol | 113 +++++--- .../contracts/aux/bridge/BridgeData.sol | 11 +- .../contracts/test/TestSwapper.sol | 10 +- .../test/TestSwappperBridgeConnector.sol | 88 +++++-- packages/loopring_v3/test/testBridge.ts | 243 +++++++++++++----- 5 files changed, 340 insertions(+), 125 deletions(-) diff --git a/packages/loopring_v3/contracts/aux/bridge/Bridge.sol b/packages/loopring_v3/contracts/aux/bridge/Bridge.sol index 052a5b9eb..36f9a5481 100644 --- a/packages/loopring_v3/contracts/aux/bridge/Bridge.sol +++ b/packages/loopring_v3/contracts/aux/bridge/Bridge.sol @@ -66,7 +66,10 @@ contract Bridge is Claimable uint public batchIDGenerator; - event Transfers(uint batchID, BridgeTransfer[] transfers); + // token -> tokenID + mapping (address => uint16) public cachedTokenIDs; + + event Transfers(uint batchID, InternalBridgeTransfer[] transfers); event BridgeCallSuccess (bytes32 hash); event BridgeCallFailed (bytes32 hash, string reason); @@ -94,8 +97,8 @@ contract Bridge is Claimable } function batchDeposit( - address from, - BridgeTransfer[] calldata deposits + address from, + BridgeTransfer[] memory deposits ) external payable @@ -104,30 +107,47 @@ contract Bridge is Claimable // Needs to be possible to do all transfers in a single block require(deposits.length <= MAX_NUM_TRANSACTIONS_IN_BLOCK, "MAX_DEPOSITS_EXCEEDED"); - // TODO: compare gas costs with a version that doesn't depend on a sorted list for best performance - uint totalETH = 0; - address token = address(0); - uint96 total = 0; + // Transfers to be done + InternalBridgeTransfer[] memory transfers = new InternalBridgeTransfer[](deposits.length); + + // Worst case scenario all tokens are different + TokenData[] memory tokens = new TokenData[](deposits.length); + uint numDistinctTokens = 0; + + // Run over all deposits summing up total amounts per token + address token = address(-1); + uint tokenIdx = 0; for (uint i = 0; i < deposits.length; i++) { - if (total == 0) { - token = deposits[i].token; - } if(token != deposits[i].token) { - _deposit(from, token, total); - totalETH = (token == address(0)) ? totalETH.add(total) : totalETH; token = deposits[i].token; - total = 0; + tokenIdx = 0; + while(tokenIdx < numDistinctTokens && tokens[tokenIdx].token != token) { + tokenIdx++; + } + if (tokenIdx == numDistinctTokens) { + tokens[tokenIdx].token = token; + tokens[tokenIdx].tokenID = _getTokenID(token); + numDistinctTokens++; + } } + tokens[tokenIdx].amount = tokens[tokenIdx].amount.add(deposits[i].amount); + deposits[i].token = address(tokens[tokenIdx].tokenID); - total = total.add(deposits[i].amount); + transfers[i].owner = deposits[i].owner; + transfers[i].tokenID = tokens[tokenIdx].tokenID; + transfers[i].amount = deposits[i].amount; } - if(total > 0) { - _deposit(from, token, total); - totalETH = (token == address(0)) ? totalETH.add(total) : totalETH; + + // Do a normal deposit per token + for(uint i = 0; i < numDistinctTokens; i++) { + if (tokens[i].token == address(0)) { + require(tokens[i].amount == msg.value, "INVALID_ETH_DEPOSIT"); + } + _deposit(from, tokens[i].token, uint96(tokens[i].amount)); } - require(totalETH == msg.value, "INVALID_ETH_DEPOSIT"); - _storeTransfers(deposits); + // Store the transfers so they can be processed later + _storeTransfers(transfers); } function beforeBlockSubmission( @@ -154,9 +174,9 @@ contract Bridge is Claimable // Allows withdrawing from pending transfers that are at least MAX_AGE_PENDING_TRANSFERS old. function withdrawFromPendingTransfers( - uint batchID, - BridgeTransfer[] calldata transfers, - uint[] calldata indices + uint batchID, + InternalBridgeTransfer[] calldata transfers, + uint[] calldata indices ) external { @@ -170,8 +190,10 @@ contract Bridge is Claimable require(!withdrawn[hash][idx], "ALREADY_WITHDRAWN"); withdrawn[hash][idx] = true; + address tokenAddress = exchange.getTokenAddress(transfers[idx].tokenID); + _transferOut( - transfers[idx].token, + tokenAddress, transfers[idx].amount, transfers[idx].owner ); @@ -219,7 +241,7 @@ contract Bridge is Claimable internal { for (uint o = 0; o < operations.length; o++) { - BridgeTransfer[] memory transfers = operations[o].transfers; + InternalBridgeTransfer[] memory transfers = operations[o].transfers; // Check if these transfers can be processed bytes32 hash = _hashTransfers(operations[o].batchID, transfers); @@ -229,17 +251,11 @@ contract Bridge is Claimable pendingTransfers[hash] = 0; // Verify transfers - address token = address(0); - uint16 tokenID = 0; TransferTransaction.Transfer memory transfer; for (uint i = 0; i < transfers.length; i++) { TransferTransaction.readTx(txsData, ctx.txIdx++ * ExchangeData.TX_DATA_AVAILABILITY_SIZE, transfer); - if (transfer.tokenID != tokenID) { - tokenID = transfer.tokenID; - token = exchange.getTokenAddress(tokenID); - } - + uint16 tokenID = transfers[i].tokenID; require( transfer.fromAccountID == ctx.accountID && transfer.to == transfers[i].owner && @@ -248,7 +264,7 @@ contract Bridge is Claimable transfer.feeTokenID == tokenID && _isAlmostEqualAmount(transfer.amount, transfers[i].amount) && transfer.fee <= (uint(transfer.amount).mul(MAX_FEE_BIPS) / 10000), - "INVALID_DISTRIBUTE_TRANSFER_TX_DATA" + "INVALID_BRIDGE_TRANSFER_TX_DATA" ); } } @@ -346,7 +362,7 @@ contract Bridge is Claimable for (uint i = 0; i < tokens.length; i++) { // Verify token data require( - tokens[i].token == exchange.getTokenAddress(tokens[i].tokenID), + _getTokenID(tokens[i].token) == tokens[i].tokenID, "INVALID_TOKEN_DATA" ); @@ -365,11 +381,12 @@ contract Bridge is Claimable "INVALID_BRIDGE_WITHDRAWAL_TX_DATA" ); + // Verify all tokens withdrawn were actually transferred into the Bridge require(tokens[i].amount == 0, "INVALID_BRIDGE_TOKEN_DATA"); } } - function _storeTransfers(BridgeTransfer[] memory transfers) + function _storeTransfers(InternalBridgeTransfer[] memory transfers) internal { uint batchID = batchIDGenerator++; @@ -423,15 +440,15 @@ contract Bridge is Claimable // If the call failed return funds to all users if (!success) { for (uint g = 0; g < connectorCalls.groups.length; g++) { - BridgeTransfer[] memory transfersOut = new BridgeTransfer[](connectorCalls.groups[g].calls.length); + InternalBridgeTransfer[] memory transfers = new InternalBridgeTransfer[](connectorCalls.groups[g].calls.length); for (uint i = 0; i < connectorCalls.groups[g].calls.length; i++) { - transfersOut[i] = BridgeTransfer({ + transfers[i] = InternalBridgeTransfer({ owner: connectorCalls.groups[g].calls[i].owner, - token: connectorCalls.groups[g].calls[i].token, + tokenID: _getTokenID(connectorCalls.groups[g].calls[i].token), amount: connectorCalls.groups[g].calls[i].amount }); } - _storeTransfers(transfersOut); + _storeTransfers(transfers); } } } @@ -477,6 +494,24 @@ contract Bridge is Claimable } } + // Returns the tokenID for the given token address. + // Instead of querying the exchange each time, the tokenID + // is automatically cached inside this contract to save gas. + function _getTokenID(address tokenAddress) + internal + returns (uint16 cachedTokenID) + { + if (tokenAddress == address(0)) { + cachedTokenID = 0; + } else { + cachedTokenID = cachedTokenIDs[tokenAddress]; + if (cachedTokenID == 0) { + cachedTokenID = exchange.getTokenID(tokenAddress); + cachedTokenIDs[tokenAddress] = cachedTokenID; + } + } + } + function _transferOut( address token, uint amount, @@ -513,7 +548,7 @@ contract Bridge is Claimable function _hashTransfers( uint batchID, - BridgeTransfer[] memory transfers + InternalBridgeTransfer[] memory transfers ) internal pure diff --git a/packages/loopring_v3/contracts/aux/bridge/BridgeData.sol b/packages/loopring_v3/contracts/aux/bridge/BridgeData.sol index ade185d8d..532691fca 100644 --- a/packages/loopring_v3/contracts/aux/bridge/BridgeData.sol +++ b/packages/loopring_v3/contracts/aux/bridge/BridgeData.sol @@ -10,6 +10,13 @@ struct BridgeTransfer uint96 amount; } +struct InternalBridgeTransfer +{ + address owner; + uint16 tokenID; + uint96 amount; +} + struct TokenData { address token; @@ -44,8 +51,8 @@ struct ConnectorCalls struct TransferOperation { - uint batchID; - BridgeTransfer[] transfers; + uint batchID; + InternalBridgeTransfer[] transfers; } struct BridgeOperations diff --git a/packages/loopring_v3/contracts/test/TestSwapper.sol b/packages/loopring_v3/contracts/test/TestSwapper.sol index b3afa3b2a..dcf71bf58 100644 --- a/packages/loopring_v3/contracts/test/TestSwapper.sol +++ b/packages/loopring_v3/contracts/test/TestSwapper.sol @@ -41,7 +41,7 @@ contract TestSwapper tokenIn.safeTransferFromAndVerify(msg.sender, address(this), amountIn); } - amountOut = amountIn.mul(rate) / 1 ether; + amountOut = getAmountOut(amountIn); if (tokenOut == address(0)) { msg.sender.sendETHAndVerify(amountOut, gasleft()); @@ -50,6 +50,14 @@ contract TestSwapper } } + function getAmountOut(uint amountIn) + public + view + returns (uint amountOut) + { + amountOut = amountIn.mul(rate) / 1 ether; + } + receive() external payable diff --git a/packages/loopring_v3/contracts/test/TestSwappperBridgeConnector.sol b/packages/loopring_v3/contracts/test/TestSwappperBridgeConnector.sol index 81a840ef7..eab1161ba 100644 --- a/packages/loopring_v3/contracts/test/TestSwappperBridgeConnector.sol +++ b/packages/loopring_v3/contracts/test/TestSwappperBridgeConnector.sol @@ -22,12 +22,17 @@ contract TestSwappperBridgeConnector is IBridgeConnector using MathUint for uint; using SafeCast for uint; - struct Settings + struct GroupSettings { address tokenIn; address tokenOut; } + struct UserSettings + { + uint minAmountOut; + } + IExchangeV3 public immutable exchange; IDepositContract public immutable depositContract; @@ -50,35 +55,88 @@ contract TestSwappperBridgeConnector is IBridgeConnector override { for (uint g = 0; g < connectorCalls.groups.length; g++) { - Settings memory settings = abi.decode(connectorCalls.groups[g].groupData, (Settings)); + GroupSettings memory settings = abi.decode(connectorCalls.groups[g].groupData, (GroupSettings)); BridgeCall[] calldata calls = connectorCalls.groups[g].calls; + bool[] memory valid = new bool[](calls.length); + uint numValid = 0; + + uint amountInExpected = 0; + for (uint i = 0; i < calls.length; i++) { + valid[i] = calls[i].token == settings.tokenIn; + if (valid[i]) { + amountInExpected = amountInExpected.add(calls[i].amount); + } + } + + // Get expected output amount + uint amountOut = testSwapper.getAmountOut(amountInExpected); + uint amountIn = 0; + uint ammountInInvalid = 0; for (uint i = 0; i < calls.length; i++) { - require(calls[i].token == settings.tokenIn, "INVALID_TOKEN"); - amountIn = amountIn.add(calls[i].amount); + if(valid[i] && calls[i].userData.length == 32) { + UserSettings memory userSettings = abi.decode(calls[i].userData, (UserSettings)); + uint userAmountOut = uint(calls[i].amount).mul(amountOut) / amountInExpected; + if (userAmountOut < userSettings.minAmountOut) { + valid[i] = false; + } + } + if (valid[i]) { + amountIn = amountIn.add(calls[i].amount); + numValid++; + } else { + ammountInInvalid = ammountInInvalid.add(calls[i].amount); + } } + // Do the actual swap + { uint ethValueOut = (settings.tokenIn == address(0)) ? amountIn : 0; - uint amountOut = testSwapper.swap{value: ethValueOut}(amountIn); + amountOut = testSwapper.swap{value: ethValueOut}(amountIn); + } + // Create transfers back to the users BridgeTransfer[] memory transfers = new BridgeTransfer[](calls.length); - for (uint i = 0; i < transfers.length; i++) { - transfers[i] = BridgeTransfer({ - owner: transfers[i].owner, - token: settings.tokenOut, - amount: (uint(transfers[i].amount).mul(amountOut) / amountIn).toUint96() - }); + for (uint i = 0; i < calls.length; i++) { + if (valid[i]) { + // Give equal share to all valid calls + transfers[i] = BridgeTransfer({ + owner: calls[i].owner, + token: settings.tokenOut, + amount: (uint(calls[i].amount).mul(amountOut) / amountIn).toUint96() + }); + } else { + // Just transfer the tokens back + transfers[i] = BridgeTransfer({ + owner: calls[i].owner, + token: calls[i].token, + amount: calls[i].amount + }); + } } + // Batch deposit + // TODO: more batching + { uint ethValueIn = 0; - if (settings.tokenOut == address(0)) { - ethValueIn = amountOut; - } else { - ERC20(settings.tokenOut).approve(address(depositContract), amountOut); + if (numValid != 0) { + if (settings.tokenOut == address(0)) { + ethValueIn = ethValueIn.add(amountOut); + } else { + ERC20(settings.tokenOut).approve(address(depositContract), amountOut); + } + } + if (numValid != calls.length) { + if (settings.tokenIn == address(0)) { + ethValueIn = ethValueIn.add(ammountInInvalid); + } else { + ERC20(settings.tokenIn).approve(address(depositContract), ammountInInvalid); + } } IBridge(msg.sender).batchDeposit{value: ethValueIn}(address(this), transfers); + } } } diff --git a/packages/loopring_v3/test/testBridge.ts b/packages/loopring_v3/test/testBridge.ts index 9f4a1df71..67e1b4047 100644 --- a/packages/loopring_v3/test/testBridge.ts +++ b/packages/loopring_v3/test/testBridge.ts @@ -1,7 +1,7 @@ import BN = require("bn.js"); import { AmmPool, Permit, PermitUtils } from "./ammUtils"; import { expectThrow } from "./expectThrow"; -import { Constants } from "loopringV3.js"; +import { Constants, roundToFloatValue } from "loopringV3.js"; import { BalanceSnapshot, ExchangeTestUtil, @@ -25,6 +25,12 @@ export interface BridgeTransfer { amount: string; } +export interface InternalBridgeTransfer { + owner: string; + tokenID: number; + amount: string; +} + export interface TokenData { token: string; tokenID: number; @@ -38,6 +44,8 @@ export interface BridgeCall { userData: string; minGas: number; maxFee: string; + connector: string; + groupData: string; } export interface ConnectorGroup { @@ -55,7 +63,7 @@ export interface ConnectorCalls { export interface TransferOperation { batchID: number; - transfers: BridgeTransfer[]; + transfers: InternalBridgeTransfer[]; } export interface BridgeOperations { @@ -228,6 +236,34 @@ contract("Bridge", (accounts: string[]) => { ); }; + const encodeGroupSettings = (tokenIn: string, tokenOut: string) => { + return web3.eth.abi.encodeParameter( + { + "struct GroupSettings": { + tokenIn: "address", + tokenOut: "address" + } + }, + { + tokenIn: ctx.getTokenAddress(tokenIn), + tokenOut: ctx.getTokenAddress(tokenOut) + } + ); + }; + + const encodeUserSettings = (minAmountOut: BN) => { + return web3.eth.abi.encodeParameter( + { + "struct UserSettings": { + minAmountOut: "uint" + } + }, + { + minAmountOut: minAmountOut.toString(10) + } + ); + }; + const encodeBridgeOperations = ( bridge: Bridge, bridgeOperations: BridgeOperations @@ -294,6 +330,51 @@ contract("Bridge", (accounts: string[]) => { return encodedBridgeOperations;*/ }; + const getOrderedDeposits = () => { + const deposits: BridgeTransfer[] = []; + deposits.push({ + owner: ownerA, + token: ctx.getTokenAddress("ETH"), + amount: web3.utils.toWei("1", "ether") + }); + deposits.push({ + owner: ownerB, + token: ctx.getTokenAddress("ETH"), + amount: web3.utils.toWei("2.1265", "ether") + }); + deposits.push({ + owner: ownerB, + token: ctx.getTokenAddress("ETH"), + amount: web3.utils.toWei("1.15484511245", "ether") + }); + deposits.push({ + owner: ownerB, + token: ctx.getTokenAddress("LRC"), + amount: web3.utils.toWei("12545.15484511245", "ether") + }); + deposits.push({ + owner: ownerB, + token: ctx.getTokenAddress("LRC"), + amount: web3.utils.toWei("26.2154454177", "ether") + }); + deposits.push({ + owner: ownerA, + token: ctx.getTokenAddress("LRC"), + amount: web3.utils.toWei("1028.2154454177", "ether") + }); + deposits.push({ + owner: ownerB, + token: ctx.getTokenAddress("WETH"), + amount: web3.utils.toWei("12.15484511245", "ether") + }); + }; + + const round = (value: string) => { + return roundToFloatValue(new BN(value), Constants.Float24Encoding).toString( + 10 + ); + }; + before(async () => { ctx = new ExchangeTestUtil(); await ctx.initialize(accounts); @@ -329,7 +410,7 @@ contract("Bridge", (accounts: string[]) => { describe("Bridge", function() { this.timeout(0); - it.only("Batch deposit", async () => { + it("Batch deposit", async () => { const bridge = await setupBridge(); const deposits: BridgeTransfer[] = []; @@ -389,12 +470,22 @@ contract("Bridge", (accounts: string[]) => { } } - await bridge.contract.batchDeposit(relayer, deposits, { + const tx = await bridge.contract.batchDeposit(relayer, deposits, { from: relayer, value: ethValue }); + console.log( + "\x1b[46m%s\x1b[0m", + "[BatchDeposit] Gas used: " + tx.receipt.gasUsed + ); const event = await ctx.assertEventEmitted(bridge.contract, "Transfers"); + const depositEvents = await ctx.assertEventsEmitted( + ctx.exchange, + "DepositRequested", + 3 + ); + // Process the deposits for (const [token, amount] of tokens.entries()) { await ctx.requestDeposit(bridge.address, token, amount); @@ -422,10 +513,17 @@ contract("Bridge", (accounts: string[]) => { ); } + const transfers: InternalBridgeTransfer[] = []; + for (const deposit of deposits) { + transfers.push({ + owner: deposit.owner, + tokenID: await ctx.getTokenID(deposit.token), + amount: deposit.amount + }); + } + const bridgeOperations: BridgeOperations = { - transferOperations: [ - { batchID: event.batchID.toNumber(), transfers: deposits } - ], + transferOperations: [{ batchID: event.batchID.toNumber(), transfers }], connectorCalls: [], tokens: [] }; @@ -444,76 +542,91 @@ contract("Bridge", (accounts: string[]) => { it.only("Batch call", async () => { const bridge = await setupBridge(); - const totalETH = new BN(web3.utils.toWei("6", "ether")); + const groupSettings = encodeGroupSettings(tokenIn, tokenOut); - const withdrawals: BridgeTransfer[] = []; - withdrawals.push({ + const calls: BridgeCall[] = []; + calls.push({ owner: ownerA, token: Constants.zeroAddress, - amount: web3.utils.toWei("1", "ether") + amount: round(web3.utils.toWei("1.0132", "ether")), + minGas: 30000, + maxFee: "0", + userData: "0x", + connector: testSwappperBridgeConnector.address, + groupData: groupSettings }); - withdrawals.push({ + calls.push({ owner: ownerB, token: Constants.zeroAddress, - amount: web3.utils.toWei("2", "ether") + amount: round(web3.utils.toWei("2.0456546565", "ether")), + minGas: 30000, + maxFee: "0", + userData: encodeUserSettings(new BN(web3.utils.toWei("2", "ether"))), + connector: testSwappperBridgeConnector.address, + groupData: groupSettings }); - withdrawals.push({ + calls.push({ owner: ownerC, - token: Constants.zeroAddress, - amount: web3.utils.toWei("3", "ether") + token: await ctx.getTokenAddress("ETH"), + amount: round(web3.utils.toWei("3.458415454541", "ether")), + minGas: 30000, + maxFee: "0", + userData: encodeUserSettings(new BN(web3.utils.toWei("4", "ether"))), + connector: testSwappperBridgeConnector.address, + groupData: groupSettings }); - for (const withdrawal of withdrawals) { + for (const call of calls) { await ctx.deposit( - withdrawal.owner, - withdrawal.owner, - withdrawal.token, - new BN(withdrawal.amount) + call.owner, + call.owner, + call.token, + new BN(call.amount) ); } await ctx.submitTransactions(); await ctx.submitPendingBlocks(); + const tokenMap: Map = new Map(); + for (const call of calls) { + if (!tokenMap.has(call.token)) { + tokenMap.set(call.token, new BN(0)); + } + tokenMap.set( + call.token, + tokenMap.get(call.token).add(new BN(call.amount)) + ); + } + + const tokens: TokenData[] = []; + for (const [token, amount] of tokenMap.entries()) { + tokens.push({ + token: token, + tokenID: await ctx.getTokenID(token), + amount: amount.toString(10) + }); + } + await bridge.contract.setConnectorTrusted( testSwappperBridgeConnector.address, true ); - const tokens: TokenData[] = []; - tokens.push({ - token: Constants.zeroAddress, - tokenID: 0, - amount: totalETH.toString(10) - }); - const blockCallback = ctx.addBlockCallback(bridge.address); - const encodedSettings = web3.eth.abi.encodeParameter( - { - "struct Settings": { - tokenIn: "address", - tokenOut: "address" - } - }, - { - tokenIn: ctx.getTokenAddress(tokenIn), - tokenOut: ctx.getTokenAddress(tokenOut) - } - ); - const connectorGroup: ConnectorGroup = { - groupData: encodedSettings, + groupData: groupSettings, calls: [] }; - for (const withdrawal of withdrawals) { + for (const call of calls) { const transfer = await ctx.transfer( - withdrawal.owner, + call.owner, bridge.address, - withdrawal.token, - new BN(withdrawal.amount), - withdrawal.token, + call.token, + new BN(call.amount), + call.token, new BN(0), { authMethod: AuthMethod.NONE, @@ -522,14 +635,6 @@ contract("Bridge", (accounts: string[]) => { } ); - const call: BridgeCall = { - owner: withdrawal.owner, - token: withdrawal.token, - amount: withdrawal.amount, - minGas: 1000000, - maxFee: "0", - userData: "0x" - }; const bridgeCallWrapper: BridgeCallWrapper = { transfer, call, @@ -541,23 +646,25 @@ contract("Bridge", (accounts: string[]) => { bridge.address ); await ctx.requestSignatureVerification( - withdrawal.owner, + call.owner, ctx.hashToFieldElement("0x" + txHash.toString("hex")) ); connectorGroup.calls.push(call); } - await ctx.requestWithdrawal( - bridge.address, - "ETH", - totalETH, - "ETH", - new BN(0), - { - authMethod: AuthMethod.NONE - } - ); + for (const token of tokens) { + await ctx.requestWithdrawal( + bridge.address, + token.token, + new BN(token.amount), + token.token, + new BN(0), + { + authMethod: AuthMethod.NONE + } + ); + } let totalMinGas = 0; for (const call of connectorGroup.calls) { @@ -583,14 +690,14 @@ contract("Bridge", (accounts: string[]) => { bridge, bridgeOperations ); - blockCallback.numTxs = withdrawals.length * 2 + 1; + blockCallback.numTxs = calls.length * 2 + tokens.length; await ctx.submitTransactions(); await ctx.submitPendingBlocks(); await ctx.assertEventEmitted(bridge.contract, "BridgeCallSuccess"); - //assert(false); + assert(false); }); }); }); From 4accf94da4e73d1fc8b7a0f39ca78a486e48a12e Mon Sep 17 00:00:00 2001 From: Brechtpd Date: Thu, 18 Mar 2021 00:00:02 +0100 Subject: [PATCH 08/15] Misc small improvements --- .../contracts/aux/bridge/Bridge.sol | 60 +- .../contracts/aux/bridge/BridgeData.sol | 1 + .../contracts/test/TestConverter.sol | 2 +- .../contracts/test/TestSwapper.sol | 20 +- .../test/TestSwappperBridgeConnector.sol | 50 +- packages/loopring_v3/test/testBridge.ts | 718 ++++++++++-------- 6 files changed, 467 insertions(+), 384 deletions(-) diff --git a/packages/loopring_v3/contracts/aux/bridge/Bridge.sol b/packages/loopring_v3/contracts/aux/bridge/Bridge.sol index 36f9a5481..97b7a7ab9 100644 --- a/packages/loopring_v3/contracts/aux/bridge/Bridge.sol +++ b/packages/loopring_v3/contracts/aux/bridge/Bridge.sol @@ -36,14 +36,16 @@ contract Bridge is Claimable uint txIdx; } - struct HashAuxData + struct HashData { - address connector; - bytes groupData; + address connector; + bytes groupData; + TransferTransaction.Transfer transfer; + BridgeCall call; } bytes32 constant public BRIDGE_CALL_TYPEHASH = keccak256( - "BridgeCall(address from,address to,uint16 tokenID,uint96 amount,uint16 feeTokenID,uint96 maxFee,uint32 storageID,uint32 minGas,address connector,bytes groupData,bytes userData)" + "BridgeCall(address from,address to,uint16 tokenID,uint96 amount,uint16 feeTokenID,uint96 maxFee,uint32 storageID,uint32 minGas,address connector,bytes groupData,bytes userData,uint256 validUntil)" ); uint public constant MAX_NUM_TRANSACTIONS_IN_BLOCK = 386; @@ -291,7 +293,7 @@ contract Bridge is Claimable for (uint c = 0; c < connectorCalls.length; c++) { // Verify token data - require(connectorCalls[c].tokens.length == tokens.length, "INVALID_DATA"); + require(connectorCalls[c].tokens.length == tokens.length, "INVALID_TOKEN_DATA"); for (uint i = 0; i < tokens.length; i++) { require(tokens[i].token == connectorCalls[c].tokens[i].token, "INVALID_CONNECTOR_TOKEN_DATA"); tokens[i].amount = tokens[i].amount.sub(connectorCalls[c].tokens[i].amount); @@ -312,23 +314,22 @@ contract Bridge is Claimable require( transfer.toAccountID == ctx.accountID && transfer.to == address(this) && - transfer.fee <= call.maxFee, - "INVALID_COLLECT_TRANSFER" + transfer.fee <= call.maxFee && + call.validUntil >= block.timestamp, + "INVALID_BRIDGE_CALL_TRANSFER" ); - HashAuxData memory hashAuxData = HashAuxData( + // Verify that the transaction was approved with an L2 signature + HashData memory hashData = HashData( connectorCalls[c].connector, - connectorCalls[c].groups[g].groupData + connectorCalls[c].groups[g].groupData, + transfer, + call ); - bytes32 txHash = _hashTx( ctx.domainSeparator, - transfer, - call, - hashAuxData + hashData ); - - // Verify that the hash was signed on L2 require( verification.owner == transfer.from && verification.data == uint(txHash) >> 3, @@ -568,10 +569,8 @@ contract Bridge is Claimable } function _hashTx( - bytes32 _DOMAIN_SEPARATOR, - TransferTransaction.Transfer memory transfer, - BridgeCall memory call, - HashAuxData memory hashAuxData + bytes32 _DOMAIN_SEPARATOR, + HashData memory hashData ) internal pure @@ -582,17 +581,18 @@ contract Bridge is Claimable keccak256( abi.encode( BRIDGE_CALL_TYPEHASH, - transfer.from, - transfer.to, - transfer.tokenID, - transfer.amount, - transfer.feeTokenID, - call.maxFee, - transfer.storageID, - call.minGas, - hashAuxData.connector, - keccak256(hashAuxData.groupData), - keccak256(call.userData) + hashData.transfer.from, + hashData.transfer.to, + hashData.transfer.tokenID, + hashData.transfer.amount, + hashData.transfer.feeTokenID, + hashData.call.maxFee, + hashData.transfer.storageID, + hashData.call.minGas, + hashData.connector, + keccak256(hashData.groupData), + keccak256(hashData.call.userData), + hashData.call.validUntil ) ) ); diff --git a/packages/loopring_v3/contracts/aux/bridge/BridgeData.sol b/packages/loopring_v3/contracts/aux/bridge/BridgeData.sol index 532691fca..749c1a842 100644 --- a/packages/loopring_v3/contracts/aux/bridge/BridgeData.sol +++ b/packages/loopring_v3/contracts/aux/bridge/BridgeData.sol @@ -32,6 +32,7 @@ struct BridgeCall bytes userData; uint minGas; uint maxFee; + uint validUntil; } struct ConnectorGroup diff --git a/packages/loopring_v3/contracts/test/TestConverter.sol b/packages/loopring_v3/contracts/test/TestConverter.sol index ca753e554..53ad2ca0d 100644 --- a/packages/loopring_v3/contracts/test/TestConverter.sol +++ b/packages/loopring_v3/contracts/test/TestConverter.sol @@ -30,7 +30,7 @@ contract TestConverter is BaseConverter returns (uint amountOut) { uint ethValue = (tokenIn == address(0)) ? amountIn : 0; - amountOut = swapContract.swap{value: ethValue}(amountIn); + amountOut = swapContract.swap{value: ethValue}(tokenIn, tokenOut, amountIn); require(amountOut >= minAmountOut, "INSUFFICIENT_OUT_AMOUNT"); } diff --git a/packages/loopring_v3/contracts/test/TestSwapper.sol b/packages/loopring_v3/contracts/test/TestSwapper.sol index dcf71bf58..b3564ebd6 100644 --- a/packages/loopring_v3/contracts/test/TestSwapper.sol +++ b/packages/loopring_v3/contracts/test/TestSwapper.sol @@ -15,22 +15,20 @@ contract TestSwapper using ERC20SafeTransfer for address; using MathUint for uint; - address public immutable tokenIn; - address public immutable tokenOut; uint public immutable rate; constructor( - address _tokenIn, - address _tokenOut, uint _rate ) { - tokenIn = _tokenIn; - tokenOut = _tokenOut; rate = _rate; } - function swap(uint amountIn) + function swap( + address tokenIn, + address tokenOut, + uint amountIn + ) external payable returns (uint amountOut) @@ -41,7 +39,7 @@ contract TestSwapper tokenIn.safeTransferFromAndVerify(msg.sender, address(this), amountIn); } - amountOut = getAmountOut(amountIn); + amountOut = getAmountOut(tokenIn, tokenOut, amountIn); if (tokenOut == address(0)) { msg.sender.sendETHAndVerify(amountOut, gasleft()); @@ -50,7 +48,11 @@ contract TestSwapper } } - function getAmountOut(uint amountIn) + function getAmountOut( + address /*tokenIn*/, + address /*tokenOut*/, + uint amountIn + ) public view returns (uint amountOut) diff --git a/packages/loopring_v3/contracts/test/TestSwappperBridgeConnector.sol b/packages/loopring_v3/contracts/test/TestSwappperBridgeConnector.sol index eab1161ba..fd2497b0c 100644 --- a/packages/loopring_v3/contracts/test/TestSwappperBridgeConnector.sol +++ b/packages/loopring_v3/contracts/test/TestSwappperBridgeConnector.sol @@ -33,6 +33,12 @@ contract TestSwappperBridgeConnector is IBridgeConnector uint minAmountOut; } + struct TokenApprovals + { + address token; + uint amount; + } + IExchangeV3 public immutable exchange; IDepositContract public immutable depositContract; @@ -54,6 +60,16 @@ contract TestSwappperBridgeConnector is IBridgeConnector payable override { + uint numTransfers = 0; + for (uint g = 0; g < connectorCalls.groups.length; g++) { + numTransfers += connectorCalls.groups[g].calls.length; + } + BridgeTransfer[] memory transfers = new BridgeTransfer[](numTransfers); + uint transferIdx = 0; + + // Total ETH to re-deposit + uint ethValueIn = 0; + for (uint g = 0; g < connectorCalls.groups.length; g++) { GroupSettings memory settings = abi.decode(connectorCalls.groups[g].groupData, (GroupSettings)); @@ -71,7 +87,11 @@ contract TestSwappperBridgeConnector is IBridgeConnector } // Get expected output amount - uint amountOut = testSwapper.getAmountOut(amountInExpected); + uint amountOut = testSwapper.getAmountOut( + settings.tokenIn, + settings.tokenOut, + amountInExpected + ); uint amountIn = 0; uint ammountInInvalid = 0; @@ -94,22 +114,28 @@ contract TestSwappperBridgeConnector is IBridgeConnector // Do the actual swap { uint ethValueOut = (settings.tokenIn == address(0)) ? amountIn : 0; - amountOut = testSwapper.swap{value: ethValueOut}(amountIn); + if (settings.tokenIn != address(0)) { + ERC20(settings.tokenIn).approve(address(testSwapper), amountIn); + } + amountOut = testSwapper.swap{value: ethValueOut}( + settings.tokenIn, + settings.tokenOut, + amountIn + ); } // Create transfers back to the users - BridgeTransfer[] memory transfers = new BridgeTransfer[](calls.length); for (uint i = 0; i < calls.length; i++) { if (valid[i]) { // Give equal share to all valid calls - transfers[i] = BridgeTransfer({ + transfers[transferIdx++] = BridgeTransfer({ owner: calls[i].owner, token: settings.tokenOut, amount: (uint(calls[i].amount).mul(amountOut) / amountIn).toUint96() }); } else { // Just transfer the tokens back - transfers[i] = BridgeTransfer({ + transfers[transferIdx++] = BridgeTransfer({ owner: calls[i].owner, token: calls[i].token, amount: calls[i].amount @@ -119,25 +145,27 @@ contract TestSwappperBridgeConnector is IBridgeConnector // Batch deposit // TODO: more batching - { - uint ethValueIn = 0; + // TODO: maybe use internal list to track allowances (maybe not needed with eip-2929) + // TODO: pre-approve tokens where possible if (numValid != 0) { if (settings.tokenOut == address(0)) { ethValueIn = ethValueIn.add(amountOut); } else { - ERC20(settings.tokenOut).approve(address(depositContract), amountOut); + uint allowance = ERC20(settings.tokenOut).allowance(address(this), address(depositContract)); + ERC20(settings.tokenOut).approve(address(depositContract), allowance.add(amountOut)); } } if (numValid != calls.length) { if (settings.tokenIn == address(0)) { ethValueIn = ethValueIn.add(ammountInInvalid); } else { - ERC20(settings.tokenIn).approve(address(depositContract), ammountInInvalid); + uint allowance = ERC20(settings.tokenIn).allowance(address(this), address(depositContract)); + ERC20(settings.tokenIn).approve(address(depositContract), allowance.add(ammountInInvalid)); } } - IBridge(msg.sender).batchDeposit{value: ethValueIn}(address(this), transfers); - } } + + IBridge(msg.sender).batchDeposit{value: ethValueIn}(address(this), transfers); } function getMinGasLimit(ConnectorCalls calldata connectorCalls) diff --git a/packages/loopring_v3/test/testBridge.ts b/packages/loopring_v3/test/testBridge.ts index 67e1b4047..243e0ff0d 100644 --- a/packages/loopring_v3/test/testBridge.ts +++ b/packages/loopring_v3/test/testBridge.ts @@ -41,9 +41,11 @@ export interface BridgeCall { owner: string; token: string; amount: string; + feeToken: string; userData: string; minGas: number; maxFee: string; + validUntil: number; connector: string; groupData: string; } @@ -103,7 +105,8 @@ export namespace CollectTransferUtils { { name: "minGas", type: "uint32" }, { name: "connector", type: "address" }, { name: "groupData", type: "bytes" }, - { name: "userData", type: "bytes" } + { name: "userData", type: "bytes" }, + { name: "validUntil", type: "uint256" } ] }, primaryType: "BridgeCall", @@ -124,7 +127,8 @@ export namespace CollectTransferUtils { minGas: callWrapper.call.minGas, connector: callWrapper.connector, groupData: callWrapper.groupData, - userData: callWrapper.call.userData + userData: callWrapper.call.userData, + validUntil: callWrapper.call.validUntil } }; return typedData; @@ -146,8 +150,11 @@ export class Bridge { public accountID: number; + public relayer: string; + constructor(ctx: ExchangeTestUtil) { this.ctx = ctx; + this.relayer = ctx.testContext.orderOwners[11]; } public async setup() { @@ -171,106 +178,262 @@ export class Bridge { this.address = this.contract.address; } -} -contract("Bridge", (accounts: string[]) => { - let ctx: ExchangeTestUtil; - - let agentRegistry: any; - let registryOwner: string; + public async batchDeposit(deposits: BridgeTransfer[]) { + const tokens: Map = new Map(); + for (const deposit of deposits) { + if (!tokens.has(deposit.token)) { + tokens.set(deposit.token, new BN(0)); + } + tokens.set( + deposit.token, + tokens.get(deposit.token).add(new BN(deposit.amount)) + ); + } + + let ethValue = new BN(0); + for (const [token, amount] of tokens.entries()) { + if (token === Constants.zeroAddress) { + ethValue = tokens.get(Constants.zeroAddress); + } else { + await this.ctx.setBalanceAndApprove(this.relayer, token, amount); + } + } - let swapper: any; - let testSwappperBridgeConnector: any; + const tx = await this.contract.batchDeposit(this.relayer, deposits, { + from: this.relayer, + value: ethValue + }); + console.log( + "\x1b[46m%s\x1b[0m", + "[BatchDeposit] Gas used: " + tx.receipt.gasUsed + ); + const event = await this.ctx.assertEventEmitted(this.contract, "Transfers"); - let tokenIn: string = "ETH"; - let tokenOut: string = "LRC"; - let rate: BN = new BN(web3.utils.toWei("1", "ether")); + const depositEvents = await this.ctx.assertEventsEmitted( + this.ctx.exchange, + "DepositRequested", + 3 + ); - const amountIn = new BN(web3.utils.toWei("10", "ether")); - const tradeAmountInA = amountIn.div(new BN(4)); - const tradeAmountInB = amountIn.div(new BN(4)).mul(new BN(3)); + // Process the deposits + for (const [token, amount] of tokens.entries()) { + await this.ctx.requestDeposit(this.address, token, amount); + } + + await this.ctx.submitTransactions(); + await this.ctx.submitPendingBlocks(); + + const blockCallback = this.ctx.addBlockCallback(this.address); + + for (const deposit of deposits) { + await this.ctx.transfer( + this.address, + deposit.owner, + deposit.token, + new BN(deposit.amount), + deposit.token, + new BN(0), + { + authMethod: AuthMethod.NONE, + amountToDeposit: new BN(0), + feeToDeposit: new BN(0), + transferToNew: true + } + ); + } + + const transfers: InternalBridgeTransfer[] = []; + for (const deposit of deposits) { + transfers.push({ + owner: deposit.owner, + tokenID: await this.ctx.getTokenID(deposit.token), + amount: deposit.amount + }); + } - let relayer: string; - let ownerA: string; - let ownerB: string; - let ownerC: string; + const bridgeOperations: BridgeOperations = { + transferOperations: [{ batchID: event.batchID.toNumber(), transfers }], + connectorCalls: [], + tokens: [] + }; - const setupBridge = async () => { - const bridge = new Bridge(ctx); - await bridge.setup(); + // Set the pool transaction data on the callback + blockCallback.auxiliaryData = this.encodeBridgeOperations(bridgeOperations); + blockCallback.numTxs = deposits.length; - await agentRegistry.registerUniversalAgent(bridge.address, true, { - from: registryOwner - }); + await this.ctx.submitTransactions(); + await this.ctx.submitPendingBlocks(); + } - swapper = await TestSwapper.new( - ctx.getTokenAddress(tokenIn), - ctx.getTokenAddress(tokenOut), - rate - ); + public async submitCalls(calls: BridgeCall[]) { + for (const call of calls) { + await this.ctx.deposit( + call.owner, + call.owner, + call.token, + new BN(call.amount) + ); + call.token = await this.ctx.getTokenAddress(call.token); + } - await ctx.transferBalance( - swapper.address, - tokenOut, - new BN(web3.utils.toWei("20", "ether")) - ); + await this.ctx.submitTransactions(); + await this.ctx.submitPendingBlocks(); - testSwappperBridgeConnector = await TestSwappperBridgeConnector.new( - ctx.exchange.address, - swapper.address - ); + const tokenMap: Map = new Map(); + for (const call of calls) { + if (!tokenMap.has(call.token)) { + tokenMap.set(call.token, new BN(0)); + } + tokenMap.set( + call.token, + tokenMap.get(call.token).add(new BN(call.amount)) + ); + } - return bridge; - }; + const bridgeOperations: BridgeOperations = { + transferOperations: [], + connectorCalls: [], + tokens: [] + }; - const encodeTransfers = (transfers: BridgeTransfer[]) => { - return web3.eth.abi.encodeParameter( - { - "struct BridgeTransfer[]": { - owner: "address", - token: "address", - amount: "uint96" + for (const [token, amount] of tokenMap.entries()) { + bridgeOperations.tokens.push({ + token: token, + tokenID: await this.ctx.getTokenID(token), + amount: amount.toString(10) + }); + } + + // Sor the calls on connector and group + for (const call of calls) { + let connectorCalls: ConnectorCalls; + for (let c = 0; c < bridgeOperations.connectorCalls.length; c++) { + if (bridgeOperations.connectorCalls[c].connector === call.connector) { + connectorCalls = bridgeOperations.connectorCalls[c]; + break; } - }, - transfers - ); - }; + } + if (connectorCalls === undefined) { + const connectorTokens: TokenData[] = []; + for (const tokenData of bridgeOperations.tokens) { + connectorTokens.push({ + token: tokenData.token, + tokenID: tokenData.tokenID, + amount: "0" + }); + } + connectorCalls = { + connector: call.connector, + gasLimit: 1000000, + totalMinGas: 0, + groups: [], + tokens: connectorTokens + }; + bridgeOperations.connectorCalls.push(connectorCalls); + } - const encodeGroupSettings = (tokenIn: string, tokenOut: string) => { - return web3.eth.abi.encodeParameter( - { - "struct GroupSettings": { - tokenIn: "address", - tokenOut: "address" + let group: ConnectorGroup; + for (let g = 0; g < connectorCalls.groups.length; g++) { + if (connectorCalls.groups[g].groupData === call.groupData) { + group = connectorCalls.groups[g]; + break; } - }, - { - tokenIn: ctx.getTokenAddress(tokenIn), - tokenOut: ctx.getTokenAddress(tokenOut) } - ); - }; + if (group === undefined) { + group = { + groupData: call.groupData, + calls: [] + }; + connectorCalls.groups.push(group); + } + group.calls.push(call); - const encodeUserSettings = (minAmountOut: BN) => { - return web3.eth.abi.encodeParameter( - { - "struct UserSettings": { - minAmountOut: "uint" + let tokenData: TokenData; + for (let t = 0; t < connectorCalls.tokens.length; t++) { + if (connectorCalls.tokens[t].token === call.token) { + tokenData = connectorCalls.tokens[t]; + break; } - }, - { - minAmountOut: minAmountOut.toString(10) } - ); - }; + assert(tokenData !== undefined, "invalid state"); + tokenData.amount = new BN(tokenData.amount) + .add(new BN(call.amount)) + .toString(10); + + connectorCalls.totalMinGas += call.minGas; + } + + // + // Do L2 transactions + // + + const blockCallback = this.ctx.addBlockCallback(this.address); + + for (const connectorCalls of bridgeOperations.connectorCalls) { + for (const group of connectorCalls.groups) { + for (const call of group.calls) { + const transfer = await this.ctx.transfer( + call.owner, + this.address, + call.token, + new BN(call.amount), + call.feeToken, + new BN(0), + { + authMethod: AuthMethod.NONE, + amountToDeposit: new BN(0), + feeToDeposit: new BN(0) + } + ); + + const bridgeCallWrapper: BridgeCallWrapper = { + transfer, + call, + connector: connectorCalls.connector, + groupData: group.groupData + }; + const txHash = CollectTransferUtils.getHash( + bridgeCallWrapper, + this.address + ); + await this.ctx.requestSignatureVerification( + call.owner, + this.ctx.hashToFieldElement("0x" + txHash.toString("hex")) + ); + } + } + } + + for (const token of bridgeOperations.tokens) { + await this.ctx.requestWithdrawal( + this.address, + token.token, + new BN(token.amount), + token.token, + new BN(0), + { + authMethod: AuthMethod.NONE + } + ); + } + + //console.log(bridgeOperations); + + // Set the pool transaction data on the callback + blockCallback.auxiliaryData = this.encodeBridgeOperations(bridgeOperations); + blockCallback.numTxs = calls.length * 2 + bridgeOperations.tokens.length; + + await this.ctx.submitTransactions(); + await this.ctx.submitPendingBlocks(); - const encodeBridgeOperations = ( - bridge: Bridge, - bridgeOperations: BridgeOperations - ) => { + await this.ctx.assertEventEmitted(this.contract, "BridgeCallSuccess"); + } + + public encodeBridgeOperations(bridgeOperations: BridgeOperations) { //console.log(bridgeOperations); - const data = bridge.contract.contract.methods + const data = this.contract.contract.methods .encode(bridgeOperations) .encodeABI(); @@ -328,45 +491,78 @@ contract("Bridge", (accounts: string[]) => { } ); return encodedBridgeOperations;*/ - }; + } +} - const getOrderedDeposits = () => { - const deposits: BridgeTransfer[] = []; - deposits.push({ - owner: ownerA, - token: ctx.getTokenAddress("ETH"), - amount: web3.utils.toWei("1", "ether") - }); - deposits.push({ - owner: ownerB, - token: ctx.getTokenAddress("ETH"), - amount: web3.utils.toWei("2.1265", "ether") - }); - deposits.push({ - owner: ownerB, - token: ctx.getTokenAddress("ETH"), - amount: web3.utils.toWei("1.15484511245", "ether") - }); - deposits.push({ - owner: ownerB, - token: ctx.getTokenAddress("LRC"), - amount: web3.utils.toWei("12545.15484511245", "ether") - }); - deposits.push({ - owner: ownerB, - token: ctx.getTokenAddress("LRC"), - amount: web3.utils.toWei("26.2154454177", "ether") - }); - deposits.push({ - owner: ownerA, - token: ctx.getTokenAddress("LRC"), - amount: web3.utils.toWei("1028.2154454177", "ether") - }); - deposits.push({ - owner: ownerB, - token: ctx.getTokenAddress("WETH"), - amount: web3.utils.toWei("12.15484511245", "ether") +contract("Bridge", (accounts: string[]) => { + let ctx: ExchangeTestUtil; + + let agentRegistry: any; + let registryOwner: string; + + let swapper: any; + let testSwappperBridgeConnector: any; + + let rate: BN = new BN(web3.utils.toWei("1", "ether")); + + let ownerA: string; + let ownerB: string; + let ownerC: string; + let ownerD: string; + + const setupBridge = async () => { + const bridge = new Bridge(ctx); + await bridge.setup(); + + await agentRegistry.registerUniversalAgent(bridge.address, true, { + from: registryOwner }); + + swapper = await TestSwapper.new(rate); + + // Add some funds to the swapper contract + for (const token of ["LRC", "WETH", "ETH"]) { + await ctx.transferBalance( + swapper.address, + token, + new BN(web3.utils.toWei("20", "ether")) + ); + } + + testSwappperBridgeConnector = await TestSwappperBridgeConnector.new( + ctx.exchange.address, + swapper.address + ); + + return bridge; + }; + + const encodeGroupSettings = (tokenIn: string, tokenOut: string) => { + return web3.eth.abi.encodeParameter( + { + "struct GroupSettings": { + tokenIn: "address", + tokenOut: "address" + } + }, + { + tokenIn: ctx.getTokenAddress(tokenIn), + tokenOut: ctx.getTokenAddress(tokenOut) + } + ); + }; + + const encodeSwapUserSettings = (minAmountOut: BN) => { + return web3.eth.abi.encodeParameter( + { + "struct UserSettings": { + minAmountOut: "uint" + } + }, + { + minAmountOut: minAmountOut.toString(10) + } + ); }; const round = (value: string) => { @@ -379,10 +575,10 @@ contract("Bridge", (accounts: string[]) => { ctx = new ExchangeTestUtil(); await ctx.initialize(accounts); - relayer = ctx.testContext.orderOwners[11]; ownerA = ctx.testContext.orderOwners[12]; ownerB = ctx.testContext.orderOwners[13]; ownerC = ctx.testContext.orderOwners[14]; + ownerD = ctx.testContext.orderOwners[15]; }); after(async () => { @@ -450,252 +646,108 @@ contract("Bridge", (accounts: string[]) => { amount: web3.utils.toWei("12.15484511245", "ether") }); - const tokens: Map = new Map(); - for (const deposit of deposits) { - if (!tokens.has(deposit.token)) { - tokens.set(deposit.token, new BN(0)); - } - tokens.set( - deposit.token, - tokens.get(deposit.token).add(new BN(deposit.amount)) - ); - } - - let ethValue = new BN(0); - for (const [token, amount] of tokens.entries()) { - if (token === Constants.zeroAddress) { - ethValue = tokens.get(Constants.zeroAddress); - } else { - await ctx.setBalanceAndApprove(relayer, token, amount); - } - } - - const tx = await bridge.contract.batchDeposit(relayer, deposits, { - from: relayer, - value: ethValue - }); - console.log( - "\x1b[46m%s\x1b[0m", - "[BatchDeposit] Gas used: " + tx.receipt.gasUsed - ); - const event = await ctx.assertEventEmitted(bridge.contract, "Transfers"); - - const depositEvents = await ctx.assertEventsEmitted( - ctx.exchange, - "DepositRequested", - 3 - ); - - // Process the deposits - for (const [token, amount] of tokens.entries()) { - await ctx.requestDeposit(bridge.address, token, amount); - } - - await ctx.submitTransactions(); - await ctx.submitPendingBlocks(); - - const blockCallback = ctx.addBlockCallback(bridge.address); - - for (const deposit of deposits) { - await ctx.transfer( - bridge.address, - deposit.owner, - deposit.token, - new BN(deposit.amount), - deposit.token, - new BN(0), - { - authMethod: AuthMethod.NONE, - amountToDeposit: new BN(0), - feeToDeposit: new BN(0), - transferToNew: true - } - ); - } - - const transfers: InternalBridgeTransfer[] = []; - for (const deposit of deposits) { - transfers.push({ - owner: deposit.owner, - tokenID: await ctx.getTokenID(deposit.token), - amount: deposit.amount - }); - } - - const bridgeOperations: BridgeOperations = { - transferOperations: [{ batchID: event.batchID.toNumber(), transfers }], - connectorCalls: [], - tokens: [] - }; - - // Set the pool transaction data on the callback - blockCallback.auxiliaryData = encodeBridgeOperations( - bridge, - bridgeOperations - ); - blockCallback.numTxs = deposits.length; - - await ctx.submitTransactions(); - await ctx.submitPendingBlocks(); + await bridge.batchDeposit(deposits); }); it.only("Batch call", async () => { const bridge = await setupBridge(); - const groupSettings = encodeGroupSettings(tokenIn, tokenOut); + await bridge.contract.setConnectorTrusted( + testSwappperBridgeConnector.address, + true + ); + + const group_ETH_LRC = encodeGroupSettings("ETH", "LRC"); + const group_LRC_ETH = encodeGroupSettings("LRC", "ETH"); + const group_WETH_LRC = encodeGroupSettings("WETH", "LRC"); const calls: BridgeCall[] = []; calls.push({ owner: ownerA, - token: Constants.zeroAddress, + token: "ETH", amount: round(web3.utils.toWei("1.0132", "ether")), - minGas: 30000, + feeToken: "ETH", maxFee: "0", + minGas: 30000, userData: "0x", + validUntil: 0xffffffff, connector: testSwappperBridgeConnector.address, - groupData: groupSettings + groupData: group_ETH_LRC }); calls.push({ owner: ownerB, - token: Constants.zeroAddress, + token: "ETH", amount: round(web3.utils.toWei("2.0456546565", "ether")), - minGas: 30000, + feeToken: "ETH", maxFee: "0", - userData: encodeUserSettings(new BN(web3.utils.toWei("2", "ether"))), + minGas: 30000, + userData: encodeSwapUserSettings( + new BN(web3.utils.toWei("2", "ether")) + ), + validUntil: 0xffffffff, connector: testSwappperBridgeConnector.address, - groupData: groupSettings + groupData: group_ETH_LRC }); calls.push({ owner: ownerC, - token: await ctx.getTokenAddress("ETH"), + token: "ETH", amount: round(web3.utils.toWei("3.458415454541", "ether")), + feeToken: "ETH", + maxFee: "0", minGas: 30000, + userData: encodeSwapUserSettings( + new BN(web3.utils.toWei("4", "ether")) + ), + validUntil: 0xffffffff, + connector: testSwappperBridgeConnector.address, + groupData: group_ETH_LRC + }); + calls.push({ + owner: ownerD, + token: "ETH", + amount: round(web3.utils.toWei("1.458415454541", "ether")), + feeToken: "ETH", maxFee: "0", - userData: encodeUserSettings(new BN(web3.utils.toWei("4", "ether"))), + minGas: 30000, + userData: encodeSwapUserSettings( + new BN(web3.utils.toWei("1", "ether")) + ), + validUntil: 0xffffffff, connector: testSwappperBridgeConnector.address, - groupData: groupSettings + groupData: group_ETH_LRC }); - for (const call of calls) { - await ctx.deposit( - call.owner, - call.owner, - call.token, - new BN(call.amount) - ); - } - - await ctx.submitTransactions(); - await ctx.submitPendingBlocks(); - - const tokenMap: Map = new Map(); - for (const call of calls) { - if (!tokenMap.has(call.token)) { - tokenMap.set(call.token, new BN(0)); - } - tokenMap.set( - call.token, - tokenMap.get(call.token).add(new BN(call.amount)) - ); - } - - const tokens: TokenData[] = []; - for (const [token, amount] of tokenMap.entries()) { - tokens.push({ - token: token, - tokenID: await ctx.getTokenID(token), - amount: amount.toString(10) - }); - } - - await bridge.contract.setConnectorTrusted( - testSwappperBridgeConnector.address, - true - ); - - const blockCallback = ctx.addBlockCallback(bridge.address); - - const connectorGroup: ConnectorGroup = { - groupData: groupSettings, - calls: [] - }; - - for (const call of calls) { - const transfer = await ctx.transfer( - call.owner, - bridge.address, - call.token, - new BN(call.amount), - call.token, - new BN(0), - { - authMethod: AuthMethod.NONE, - amountToDeposit: new BN(0), - feeToDeposit: new BN(0) - } - ); - - const bridgeCallWrapper: BridgeCallWrapper = { - transfer, - call, - connector: testSwappperBridgeConnector.address, - groupData: connectorGroup.groupData - }; - const txHash = CollectTransferUtils.getHash( - bridgeCallWrapper, - bridge.address - ); - await ctx.requestSignatureVerification( - call.owner, - ctx.hashToFieldElement("0x" + txHash.toString("hex")) - ); - - connectorGroup.calls.push(call); - } - - for (const token of tokens) { - await ctx.requestWithdrawal( - bridge.address, - token.token, - new BN(token.amount), - token.token, - new BN(0), - { - authMethod: AuthMethod.NONE - } - ); - } - - let totalMinGas = 0; - for (const call of connectorGroup.calls) { - totalMinGas += call.minGas; - } - - const connectorCalls: ConnectorCalls = { + calls.push({ + owner: ownerB, + token: "LRC", + amount: round(web3.utils.toWei("1.458415454541", "ether")), + feeToken: "LRC", + maxFee: "0", + minGas: 30000, + userData: encodeSwapUserSettings( + new BN(web3.utils.toWei("1", "ether")) + ), + validUntil: 0xffffffff, connector: testSwappperBridgeConnector.address, - gasLimit: 1000000, - totalMinGas, - groups: [connectorGroup], - tokens - }; - - const bridgeOperations: BridgeOperations = { - transferOperations: [], - connectorCalls: [connectorCalls], - tokens - }; - - // Set the pool transaction data on the callback - blockCallback.auxiliaryData = encodeBridgeOperations( - bridge, - bridgeOperations - ); - blockCallback.numTxs = calls.length * 2 + tokens.length; + groupData: group_LRC_ETH + }); - await ctx.submitTransactions(); - await ctx.submitPendingBlocks(); + calls.push({ + owner: ownerB, + token: "WETH", + amount: round(web3.utils.toWei("1.458415454541", "ether")), + feeToken: "WETH", + maxFee: "0", + minGas: 30000, + userData: encodeSwapUserSettings( + new BN(web3.utils.toWei("1", "ether")) + ), + validUntil: 0xffffffff, + connector: testSwappperBridgeConnector.address, + groupData: group_WETH_LRC + }); - await ctx.assertEventEmitted(bridge.contract, "BridgeCallSuccess"); + await bridge.submitCalls(calls); assert(false); }); From f113f6d188bb6131fa96b2b214d17b4eb7c19862 Mon Sep 17 00:00:00 2001 From: Brechtpd Date: Thu, 18 Mar 2021 21:29:00 +0100 Subject: [PATCH 09/15] Small optimizations --- .../contracts/aux/bridge/Bridge.sol | 68 +++++++++++-------- .../core/impl/libexchange/ExchangeBlocks.sol | 8 +-- .../loopring_v3/contracts/lib/AddressUtil.sol | 23 +++++++ packages/loopring_v3/test/testExchangeUtil.ts | 2 +- 4 files changed, 68 insertions(+), 33 deletions(-) diff --git a/packages/loopring_v3/contracts/aux/bridge/Bridge.sol b/packages/loopring_v3/contracts/aux/bridge/Bridge.sol index 97b7a7ab9..65b41f1f3 100644 --- a/packages/loopring_v3/contracts/aux/bridge/Bridge.sol +++ b/packages/loopring_v3/contracts/aux/bridge/Bridge.sol @@ -73,8 +73,8 @@ contract Bridge is Claimable event Transfers(uint batchID, InternalBridgeTransfer[] transfers); - event BridgeCallSuccess (bytes32 hash); - event BridgeCallFailed (bytes32 hash, string reason); + event BridgeCallSuccess (address connector); + event BridgeCallFailed (address connector, string reason); event ConnectorTrusted (address connector, bool trusted); @@ -279,7 +279,6 @@ contract Bridge is Claimable ) internal { - ConnectorCalls[] memory connectorCalls = operations.connectorCalls; TokenData[] memory tokens = operations.tokens; uint[] memory withdrawalAmounts = new uint[](tokens.length); @@ -290,25 +289,29 @@ contract Bridge is Claimable // Calls TransferTransaction.Transfer memory transfer; SignatureVerificationTransaction.SignatureVerification memory verification; - for (uint c = 0; c < connectorCalls.length; c++) { + HashData memory hashData; + for (uint c = 0; c < operations.connectorCalls.length; c++) { + + ConnectorCalls memory connectorCall = operations.connectorCalls[c]; // Verify token data - require(connectorCalls[c].tokens.length == tokens.length, "INVALID_TOKEN_DATA"); + require(connectorCall.tokens.length == tokens.length, "INVALID_TOKEN_DATA"); for (uint i = 0; i < tokens.length; i++) { - require(tokens[i].token == connectorCalls[c].tokens[i].token, "INVALID_CONNECTOR_TOKEN_DATA"); - tokens[i].amount = tokens[i].amount.sub(connectorCalls[c].tokens[i].amount); + require(tokens[i].token == connectorCall.tokens[i].token, "INVALID_CONNECTOR_TOKEN_DATA"); + tokens[i].amount = tokens[i].amount.sub(connectorCall.tokens[i].amount); } // Call the connector - _connectorCall(connectorCalls[c]); + _connectorCall(connectorCall); // Verify the transactions - for (uint g = 0; g < connectorCalls[c].groups.length; g++) { - for (uint i = 0; i < connectorCalls[c].groups[g].calls.length; i++) { + for (uint g = 0; g < connectorCall.groups.length; g++) { + ConnectorGroup memory group = connectorCall.groups[g]; + for (uint i = 0; i < group.calls.length; i++) { TransferTransaction.readTx(txsData, ctx.txIdx++ * ExchangeData.TX_DATA_AVAILABILITY_SIZE, transfer); SignatureVerificationTransaction.readTx(txsData, ctx.txIdx++ * ExchangeData.TX_DATA_AVAILABILITY_SIZE, verification); - BridgeCall memory call = connectorCalls[c].groups[g].calls[i]; + BridgeCall memory call = group.calls[i]; // Verify the transaction data require( @@ -320,12 +323,10 @@ contract Bridge is Claimable ); // Verify that the transaction was approved with an L2 signature - HashData memory hashData = HashData( - connectorCalls[c].connector, - connectorCalls[c].groups[g].groupData, - transfer, - call - ); + hashData.connector = connectorCall.connector; + hashData.groupData = group.groupData; + hashData.transfer = transfer; + hashData.call = call; bytes32 txHash = _hashTx( ctx.domainSeparator, hashData @@ -336,11 +337,11 @@ contract Bridge is Claimable "INVALID_OFFCHAIN_L2_APPROVAL" ); - connectorCalls[c].totalMinGas = connectorCalls[c].totalMinGas.sub(call.minGas); + connectorCall.totalMinGas = connectorCall.totalMinGas.sub(call.minGas); for (uint t = 0; t < tokens.length; t++) { if (transfer.tokenID == tokens[t].tokenID) { - connectorCalls[c].tokens[t].amount = connectorCalls[c].tokens[t].amount.sub(transfer.amount); + connectorCall.tokens[t].amount = connectorCall.tokens[t].amount.sub(transfer.amount); } } } @@ -348,14 +349,14 @@ contract Bridge is Claimable // Make sure token amounts passed in match for (uint i = 0; i < tokens.length; i++) { - require(connectorCalls[c].tokens[i].amount == 0, "INVALID_BRIDGE_DATA"); + require(connectorCall.tokens[i].amount == 0, "INVALID_BRIDGE_DATA"); } // Make sure the gas passed to the connector is at least the sum of all call gas min amounts. // So calls basically "buy" a part of the total gas needed to do the batched call, // while IBridgeConnector.getMinGasLimit() makes sure the total gas limit makes sense for the // amount of work submitted. - require(connectorCalls[c].totalMinGas == 0, "INVALID_TOTAL_MIN_GAS"); + require(connectorCall.totalMinGas == 0, "INVALID_TOTAL_MIN_GAS"); } // Verify the withdrawals @@ -429,13 +430,13 @@ contract Bridge is Claimable bool success; try Bridge(this)._executeConnectorCall(connectorCalls) { success = true; - emit BridgeCallSuccess(keccak256(abi.encode(connectorCalls))); + emit BridgeCallSuccess(connectorCalls.connector); } catch Error(string memory reason) { success = false; - emit BridgeCallFailed(keccak256(abi.encode(connectorCalls)), reason); + emit BridgeCallFailed(connectorCalls.connector, reason); } catch { success = false; - emit BridgeCallFailed(keccak256(abi.encode(connectorCalls)), "unknown"); + emit BridgeCallFailed(connectorCalls.connector, "unknown"); } // If the call failed return funds to all users @@ -466,11 +467,24 @@ contract Bridge is Claimable // Execute the logic using a delegate so no extra transfers are needed // Do the delegate call - bytes memory txData = abi.encodeWithSelector( + /*bytes memory txData = abi.encodeWithSelector( IBridgeConnector.processCalls.selector, connectorCalls - ); - (bool success, bytes memory returnData) = connectorCalls.connector.delegatecall(txData); + );*/ + //(bool success, bytes memory returnData) = connectorCalls.connector.delegatecall(txData); + + // Manually copy data from the calldata and pass it into the connector + uint txDataSize; + assembly { + txDataSize := calldatasize() + } + bytes memory txData = new bytes(txDataSize); + bytes4 selector = IBridgeConnector.processCalls.selector; + assembly { + mstore(add(txData, 32), selector) + calldatacopy(add(txData, 36), 4, sub(txDataSize, 4)) + } + (bool success, bytes memory returnData) = connectorCalls.connector.fastDelegatecall(gasleft(), txData); if (!success) { assembly { revert(add(returnData, 32), mload(returnData)) } } diff --git a/packages/loopring_v3/contracts/core/impl/libexchange/ExchangeBlocks.sol b/packages/loopring_v3/contracts/core/impl/libexchange/ExchangeBlocks.sol index 76b05fc4f..3d555e044 100644 --- a/packages/loopring_v3/contracts/core/impl/libexchange/ExchangeBlocks.sol +++ b/packages/loopring_v3/contracts/core/impl/libexchange/ExchangeBlocks.sol @@ -236,10 +236,6 @@ library ExchangeBlocks minTxIndex = txIndex + 1; - /*if (approved) { - continue; - }*/ - // Get the transaction data _block.data.readTransactionData(txIndex, _block.blockSize, txData); @@ -249,7 +245,9 @@ library ExchangeBlocks ); uint txDataOffset = 0; - if (approved && txType != ExchangeData.TransactionType.WITHDRAWAL) { + if (approved && + txType != ExchangeData.TransactionType.WITHDRAWAL && + txType != ExchangeData.TransactionType.DEPOSIT) { continue; } diff --git a/packages/loopring_v3/contracts/lib/AddressUtil.sol b/packages/loopring_v3/contracts/lib/AddressUtil.sol index 7cdfc2ad6..274b95ddc 100644 --- a/packages/loopring_v3/contracts/lib/AddressUtil.sol +++ b/packages/loopring_v3/contracts/lib/AddressUtil.sol @@ -113,4 +113,27 @@ library AddressUtil } } } + + function fastDelegatecall( + address to, + uint gasLimit, + bytes memory data + ) + internal + returns (bool success, bytes memory returnData) + { + if (to != address(0)) { + assembly { + // Do the call + success := delegatecall(gasLimit, to, add(data, 32), mload(data), 0, 0) + // Copy the return data + let size := returndatasize() + returnData := mload(0x40) + mstore(returnData, size) + returndatacopy(add(returnData, 32), 0, size) + // Update free memory pointer + mstore(0x40, add(returnData, add(32, size))) + } + } + } } diff --git a/packages/loopring_v3/test/testExchangeUtil.ts b/packages/loopring_v3/test/testExchangeUtil.ts index 1ea826f66..a35d2f6e6 100644 --- a/packages/loopring_v3/test/testExchangeUtil.ts +++ b/packages/loopring_v3/test/testExchangeUtil.ts @@ -480,7 +480,7 @@ export class ExchangeTestUtil { public explorer: Explorer; - public blockSizes = [8]; + public blockSizes = [8, 16]; public loopringV3: any; public blockVerifier: any; From b33f52a5954b3a00e43abc7260baf0df11241544 Mon Sep 17 00:00:00 2001 From: Brechtpd Date: Thu, 18 Mar 2021 22:45:20 +0100 Subject: [PATCH 10/15] Feedback --- .../contracts/aux/bridge/Bridge.sol | 23 +++++++++---------- .../contracts/aux/bridge/BridgeData.sol | 8 +++---- .../contracts/aux/bridge/IBridge.sol | 9 +++----- .../contracts/aux/bridge/IBridgeConnector.sol | 10 ++++---- .../contracts/core/impl/ExchangeV3.sol | 5 +++- .../test/TestSwappperBridgeConnector.sol | 2 +- packages/loopring_v3/test/testBridge.ts | 10 ++++---- 7 files changed, 33 insertions(+), 34 deletions(-) diff --git a/packages/loopring_v3/contracts/aux/bridge/Bridge.sol b/packages/loopring_v3/contracts/aux/bridge/Bridge.sol index 65b41f1f3..ca30aabdc 100644 --- a/packages/loopring_v3/contracts/aux/bridge/Bridge.sol +++ b/packages/loopring_v3/contracts/aux/bridge/Bridge.sol @@ -99,13 +99,11 @@ contract Bridge is Claimable } function batchDeposit( - address from, BridgeTransfer[] memory deposits ) external payable { - require(from == msg.sender, "UNAUTHORIZED"); // Needs to be possible to do all transfers in a single block require(deposits.length <= MAX_NUM_TRANSACTIONS_IN_BLOCK, "MAX_DEPOSITS_EXCEEDED"); @@ -145,7 +143,7 @@ contract Bridge is Claimable if (tokens[i].token == address(0)) { require(tokens[i].amount == msg.value, "INVALID_ETH_DEPOSIT"); } - _deposit(from, tokens[i].token, uint96(tokens[i].amount)); + _deposit(msg.sender, tokens[i].token, uint96(tokens[i].amount)); } // Store the transfers so they can be processed later @@ -167,7 +165,7 @@ contract Bridge is Claimable txIdx: 0 }); - _processTransfers(ctx, operations.transferOperations, txsData); + _processTransfers(ctx, operations.transferBatches, txsData); _processCalls(ctx, operations, txsData); // Make sure we have consumed exactly the expected number of transactions @@ -175,7 +173,7 @@ contract Bridge is Claimable } // Allows withdrawing from pending transfers that are at least MAX_AGE_PENDING_TRANSFERS old. - function withdrawFromPendingTransfers( + function withdrawFromPendingBatchDeposit( uint batchID, InternalBridgeTransfer[] calldata transfers, uint[] calldata indices @@ -236,9 +234,9 @@ contract Bridge is Claimable // --- Internal functions --- function _processTransfers( - Context memory ctx, - TransferOperation[] memory operations, - bytes memory txsData + Context memory ctx, + TransferBatch[] memory operations, + bytes memory txsData ) internal { @@ -495,11 +493,12 @@ contract Bridge is Claimable // Transfer funds to the connector contract uint ethValue = 0; for (uint i = 0; i < connectorCalls.tokens.length; i++) { - if (connectorCalls.tokens[i].amount > 0) { - if (connectorCalls.tokens[i].token != address(0)) { - connectorCalls.tokens[i].token.safeTransferAndVerify(connectorCalls.connector, connectorCalls.tokens[i].amount); + TokenData memory tokenData = connectorCalls.tokens[i]; + if (tokenData.amount > 0) { + if (tokenData.token != address(0)) { + tokenData.token.safeTransferAndVerify(connectorCalls.connector, tokenData.amount); } else { - ethValue = ethValue.add(connectorCalls.tokens[i].amount); + ethValue = ethValue.add(tokenData.amount); } } } diff --git a/packages/loopring_v3/contracts/aux/bridge/BridgeData.sol b/packages/loopring_v3/contracts/aux/bridge/BridgeData.sol index 749c1a842..1cdf32697 100644 --- a/packages/loopring_v3/contracts/aux/bridge/BridgeData.sol +++ b/packages/loopring_v3/contracts/aux/bridge/BridgeData.sol @@ -50,7 +50,7 @@ struct ConnectorCalls TokenData[] tokens; } -struct TransferOperation +struct TransferBatch { uint batchID; InternalBridgeTransfer[] transfers; @@ -58,7 +58,7 @@ struct TransferOperation struct BridgeOperations { - TransferOperation[] transferOperations; - ConnectorCalls[] connectorCalls; - TokenData[] tokens; + TransferBatch[] transferBatches; + ConnectorCalls[] connectorCalls; + TokenData[] tokens; } \ No newline at end of file diff --git a/packages/loopring_v3/contracts/aux/bridge/IBridge.sol b/packages/loopring_v3/contracts/aux/bridge/IBridge.sol index 8ec76b6d6..a2ac52db4 100644 --- a/packages/loopring_v3/contracts/aux/bridge/IBridge.sol +++ b/packages/loopring_v3/contracts/aux/bridge/IBridge.sol @@ -8,10 +8,7 @@ import "./BridgeData.sol"; interface IBridge { - function batchDeposit( - address from, - BridgeTransfer[] calldata deposits - ) - external - payable; + function batchDeposit(BridgeTransfer[] calldata deposits) + external + payable; } \ No newline at end of file diff --git a/packages/loopring_v3/contracts/aux/bridge/IBridgeConnector.sol b/packages/loopring_v3/contracts/aux/bridge/IBridgeConnector.sol index d0d8873d6..0d060dd55 100644 --- a/packages/loopring_v3/contracts/aux/bridge/IBridgeConnector.sol +++ b/packages/loopring_v3/contracts/aux/bridge/IBridgeConnector.sol @@ -9,11 +9,11 @@ import "./BridgeData.sol"; interface IBridgeConnector { function processCalls(ConnectorCalls calldata connectorCalls) - external - payable; + external + payable; function getMinGasLimit(ConnectorCalls calldata connectorCalls) - external - pure - returns (uint); + external + pure + returns (uint); } \ No newline at end of file diff --git a/packages/loopring_v3/contracts/core/impl/ExchangeV3.sol b/packages/loopring_v3/contracts/core/impl/ExchangeV3.sol index 3aac9bb35..177188e5b 100644 --- a/packages/loopring_v3/contracts/core/impl/ExchangeV3.sol +++ b/packages/loopring_v3/contracts/core/impl/ExchangeV3.sol @@ -436,7 +436,10 @@ contract ExchangeV3 is IExchangeV3, ReentrancyGuard view { for (uint i = 0; i < flashMints.length; i++) { - require(state.amountFlashMinted[flashMints[i].token] == 0, "FLASH_MINT_NOT_REPAID"); + require( + state.amountFlashMinted[flashMints[i].token] == 0, + "FLASH_MINT_NOT_REPAID" + ); } } diff --git a/packages/loopring_v3/contracts/test/TestSwappperBridgeConnector.sol b/packages/loopring_v3/contracts/test/TestSwappperBridgeConnector.sol index fd2497b0c..932027f2f 100644 --- a/packages/loopring_v3/contracts/test/TestSwappperBridgeConnector.sol +++ b/packages/loopring_v3/contracts/test/TestSwappperBridgeConnector.sol @@ -165,7 +165,7 @@ contract TestSwappperBridgeConnector is IBridgeConnector } } - IBridge(msg.sender).batchDeposit{value: ethValueIn}(address(this), transfers); + IBridge(msg.sender).batchDeposit{value: ethValueIn}(transfers); } function getMinGasLimit(ConnectorCalls calldata connectorCalls) diff --git a/packages/loopring_v3/test/testBridge.ts b/packages/loopring_v3/test/testBridge.ts index 243e0ff0d..cd69cf605 100644 --- a/packages/loopring_v3/test/testBridge.ts +++ b/packages/loopring_v3/test/testBridge.ts @@ -63,13 +63,13 @@ export interface ConnectorCalls { tokens: TokenData[]; } -export interface TransferOperation { +export interface TransferBatch { batchID: number; transfers: InternalBridgeTransfer[]; } export interface BridgeOperations { - transferOperations: TransferOperation[]; + transferBatches: TransferBatch[]; connectorCalls: ConnectorCalls[]; tokens: TokenData[]; } @@ -200,7 +200,7 @@ export class Bridge { } } - const tx = await this.contract.batchDeposit(this.relayer, deposits, { + const tx = await this.contract.batchDeposit(deposits, { from: this.relayer, value: ethValue }); @@ -253,7 +253,7 @@ export class Bridge { } const bridgeOperations: BridgeOperations = { - transferOperations: [{ batchID: event.batchID.toNumber(), transfers }], + transferBatches: [{ batchID: event.batchID.toNumber(), transfers }], connectorCalls: [], tokens: [] }; @@ -292,7 +292,7 @@ export class Bridge { } const bridgeOperations: BridgeOperations = { - transferOperations: [], + transferBatches: [], connectorCalls: [], tokens: [] }; From 90a55760a84d9819ee021f9ee8e190a55d31b633 Mon Sep 17 00:00:00 2001 From: Daniel Wang Date: Tue, 23 Mar 2021 16:59:48 +0800 Subject: [PATCH 11/15] Update LPERC20.sol --- .../loopring_v3/contracts/lib/LPERC20.sol | 55 ++++++++++--------- 1 file changed, 29 insertions(+), 26 deletions(-) diff --git a/packages/loopring_v3/contracts/lib/LPERC20.sol b/packages/loopring_v3/contracts/lib/LPERC20.sol index 188b31dd5..f753c4029 100644 --- a/packages/loopring_v3/contracts/lib/LPERC20.sol +++ b/packages/loopring_v3/contracts/lib/LPERC20.sol @@ -13,11 +13,10 @@ contract LPERC20 is ERC20 using MathUint for uint; using SignatureUtil for bytes32; - bytes32 public DOMAIN_SEPARATOR; - - string public name; - string public symbol; - uint8 public decimals; + bytes32 public DOMAIN_SEPARATOR; + string public name; + string public symbol; + uint8 public decimals; uint public override totalSupply; mapping(address => uint) public override balanceOf; @@ -36,7 +35,11 @@ contract LPERC20 is ERC20 ) internal { - DOMAIN_SEPARATOR = EIP712.hash(EIP712.Domain("LPERC20", "1.0", address(this))); + DOMAIN_SEPARATOR = EIP712.hash(EIP712.Domain( + "LPERC20", + "1.0", + address(this) + )); name = _name; symbol = _symbol; @@ -44,8 +47,8 @@ contract LPERC20 is ERC20 } function approve( - address spender, - uint value + address spender, + uint value ) external override @@ -56,8 +59,8 @@ contract LPERC20 is ERC20 } function transfer( - address to, - uint value + address to, + uint value ) external override @@ -68,9 +71,9 @@ contract LPERC20 is ERC20 } function transferFrom( - address from, - address to, - uint value + address from, + address to, + uint value ) external override @@ -86,7 +89,7 @@ contract LPERC20 is ERC20 function _mint( address to, - uint value + uint value ) internal { @@ -97,7 +100,7 @@ contract LPERC20 is ERC20 function _burn( address from, - uint value + uint value ) internal { @@ -107,11 +110,11 @@ contract LPERC20 is ERC20 } function permit( - address owner, - address spender, - uint256 value, - uint256 deadline, - bytes calldata signature + address owner, + address spender, + uint256 value, + uint256 deadline, + bytes calldata signature ) external { @@ -136,9 +139,9 @@ contract LPERC20 is ERC20 } function _approve( - address owner, - address spender, - uint value + address owner, + address spender, + uint value ) private { @@ -149,9 +152,9 @@ contract LPERC20 is ERC20 } function _transfer( - address from, - address to, - uint value + address from, + address to, + uint value ) private { From f03a0d15c2e862a6aa2fac9c8f6780a119ef78e1 Mon Sep 17 00:00:00 2001 From: Daniel Wang Date: Tue, 23 Mar 2021 18:51:28 +0800 Subject: [PATCH 12/15] minor code formatting --- .../contracts/aux/access/LoopringIOExchangeOwner.sol | 2 +- packages/loopring_v3/contracts/test/LzDecompressorContract.sol | 1 + .../loopring_v3/contracts/test/ZeroDecompressorContract.sol | 1 + 3 files changed, 3 insertions(+), 1 deletion(-) diff --git a/packages/loopring_v3/contracts/aux/access/LoopringIOExchangeOwner.sol b/packages/loopring_v3/contracts/aux/access/LoopringIOExchangeOwner.sol index 321f2e032..5030011df 100644 --- a/packages/loopring_v3/contracts/aux/access/LoopringIOExchangeOwner.sol +++ b/packages/loopring_v3/contracts/aux/access/LoopringIOExchangeOwner.sol @@ -227,7 +227,7 @@ contract LoopringIOExchangeOwner is SelectorBasedAccessManager, ERC1271, Drainab } function _processTxCallbacks( - ExchangeData.Block memory _block, + ExchangeData.Block memory _block, TxCallback[] calldata txCallbacks, address[] calldata receivers, bool[] memory preApprovedTxs diff --git a/packages/loopring_v3/contracts/test/LzDecompressorContract.sol b/packages/loopring_v3/contracts/test/LzDecompressorContract.sol index 35374686d..48d56325e 100644 --- a/packages/loopring_v3/contracts/test/LzDecompressorContract.sol +++ b/packages/loopring_v3/contracts/test/LzDecompressorContract.sol @@ -19,6 +19,7 @@ contract LzDecompressorContract { bytes calldata data ) external + pure returns (bytes memory) { return LzDecompressor.decompress(data); diff --git a/packages/loopring_v3/contracts/test/ZeroDecompressorContract.sol b/packages/loopring_v3/contracts/test/ZeroDecompressorContract.sol index 74fb69b4e..b208e07d3 100644 --- a/packages/loopring_v3/contracts/test/ZeroDecompressorContract.sol +++ b/packages/loopring_v3/contracts/test/ZeroDecompressorContract.sol @@ -19,6 +19,7 @@ contract ZeroDecompressorContract { bytes calldata data ) external + pure returns (bytes memory) { return ZeroDecompressor.decompress(data, 0); From 7af1e4afff228b52353aca7e9241f91a7c9f1bca Mon Sep 17 00:00:00 2001 From: Brecht Devos Date: Mon, 12 Apr 2021 01:09:05 +0200 Subject: [PATCH 13/15] [Bridge+AMM] Optimizations + fixes (#2325) * [Bridge+AMM] Optimizations + fixes * [Bridge] Misc improvements * Add migration test connector * Misc small improvements * Misc fixes + tests --- .../contracts/amm/LoopringAmmPool.sol | 22 +- .../contracts/amm/libamm/AmmBlockReceiver.sol | 91 -- .../contracts/amm/libamm/AmmData.sol | 3 +- .../contracts/amm/libamm/AmmExitProcess.sol | 122 ++- .../contracts/amm/libamm/AmmExitRequest.sol | 28 +- .../contracts/amm/libamm/AmmJoinProcess.sol | 118 ++- .../contracts/amm/libamm/AmmJoinRequest.sol | 28 +- .../amm/libamm/AmmTransactionReceiver.sol | 108 +++ .../contracts/amm/libamm/AmmUpdateProcess.sol | 31 +- .../contracts/amm/libamm/AmmUtil.sol | 55 +- ...kReceiver.sol => ITransactionReceiver.sol} | 10 +- .../aux/access/LoopringIOExchangeOwner.sol | 117 ++- .../contracts/aux/bridge/Bridge.sol | 903 +++++++++++------- .../contracts/aux/bridge/BridgeData.sol | 6 +- .../contracts/aux/bridge/IBridgeConnector.sol | 7 +- .../aux/transactions/TransactionReader.sol | 38 +- .../contracts/converters/BaseConverter.sol | 5 +- .../contracts/core/iface/ExchangeData.sol | 5 + .../contracts/core/impl/ExchangeV3.sol | 16 +- .../core/impl/libexchange/ExchangeBlocks.sol | 47 +- .../impl/libexchange/ExchangeDeposits.sol | 6 +- .../core/impl/libtransactions/BlockReader.sol | 15 + .../libtransactions/WithdrawTransaction.sol | 6 +- .../loopring_v3/contracts/lib/FloatUtil.sol | 32 + .../test/TestMigrationBridgeConnector.sol | 123 +++ .../contracts/test/TestSwapper.sol | 7 +- .../test/TestSwappperBridgeConnector.sol | 88 +- .../contracts/thirdparty/BytesUtil.sol | 21 + packages/loopring_v3/test/ammUtils.ts | 8 +- packages/loopring_v3/test/testBridge.ts | 773 ++++++++++++--- packages/loopring_v3/test/testConverter.ts | 6 +- packages/loopring_v3/test/testDebugTools.ts | 12 +- packages/loopring_v3/test/testExchangeUtil.ts | 68 +- packages/loopring_v3/test/types.ts | 4 +- packages/loopring_v3/truffle.js | 2 +- 35 files changed, 2075 insertions(+), 856 deletions(-) delete mode 100644 packages/loopring_v3/contracts/amm/libamm/AmmBlockReceiver.sol create mode 100644 packages/loopring_v3/contracts/amm/libamm/AmmTransactionReceiver.sol rename packages/loopring_v3/contracts/aux/access/{IBlockReceiver.sol => ITransactionReceiver.sol} (63%) create mode 100644 packages/loopring_v3/contracts/test/TestMigrationBridgeConnector.sol diff --git a/packages/loopring_v3/contracts/amm/LoopringAmmPool.sol b/packages/loopring_v3/contracts/amm/LoopringAmmPool.sol index 574b3316b..f902283dc 100644 --- a/packages/loopring_v3/contracts/amm/LoopringAmmPool.sol +++ b/packages/loopring_v3/contracts/amm/LoopringAmmPool.sol @@ -3,11 +3,11 @@ pragma solidity ^0.7.0; pragma experimental ABIEncoderV2; -import "../aux/access/IBlockReceiver.sol"; +import "../aux/access/ITransactionReceiver.sol"; import "../core/iface/IAgentRegistry.sol"; // import "../lib/Drainable.sol"; import "../lib/ReentrancyGuard.sol"; -import "./libamm/AmmBlockReceiver.sol"; +import "./libamm/AmmTransactionReceiver.sol"; import "./libamm/AmmData.sol"; import "./libamm/AmmExitRequest.sol"; import "./libamm/AmmJoinRequest.sol"; @@ -21,15 +21,15 @@ import "./PoolToken.sol"; contract LoopringAmmPool is PoolToken, IAgent, - IBlockReceiver, + ITransactionReceiver, ReentrancyGuard { - using AmmBlockReceiver for AmmData.State; - using AmmJoinRequest for AmmData.State; - using AmmExitRequest for AmmData.State; - using AmmPoolToken for AmmData.State; - using AmmStatus for AmmData.State; - using AmmWithdrawal for AmmData.State; + using AmmTransactionReceiver for AmmData.State; + using AmmJoinRequest for AmmData.State; + using AmmExitRequest for AmmData.State; + using AmmPoolToken for AmmData.State; + using AmmStatus for AmmData.State; + using AmmWithdrawal for AmmData.State; event PoolJoinRequested(AmmData.PoolJoin join); event PoolExitRequested(AmmData.PoolExit exit, bool force); @@ -118,7 +118,7 @@ contract LoopringAmmPool is state.exitPool(burnAmount, exitMinAmounts, true); } - function beforeBlockSubmission( + function onReceiveTransactions( bytes calldata txsData, bytes calldata callbackData ) @@ -129,7 +129,7 @@ contract LoopringAmmPool is // nonReentrant // Not needed, does not do any external calls // and can only be called by the exchange owner. { - state.beforeBlockSubmission(txsData, callbackData); + state.onReceiveTransactions(txsData, callbackData); } function withdrawWhenOffline() diff --git a/packages/loopring_v3/contracts/amm/libamm/AmmBlockReceiver.sol b/packages/loopring_v3/contracts/amm/libamm/AmmBlockReceiver.sol deleted file mode 100644 index a0ebaf380..000000000 --- a/packages/loopring_v3/contracts/amm/libamm/AmmBlockReceiver.sol +++ /dev/null @@ -1,91 +0,0 @@ -// SPDX-License-Identifier: Apache-2.0 -// Copyright 2017 Loopring Technology Limited. -pragma solidity ^0.7.0; -pragma experimental ABIEncoderV2; - -import "../../core/impl/libtransactions/BlockReader.sol"; -import "../../lib/MathUint.sol"; -import "./AmmData.sol"; -import "./AmmExitProcess.sol"; -import "./AmmJoinProcess.sol"; -import "./AmmPoolToken.sol"; -import "./AmmUpdateProcess.sol"; - - -/// @title AmmBlockReceiver -library AmmBlockReceiver -{ - using AmmExitProcess for AmmData.State; - using AmmJoinProcess for AmmData.State; - using AmmPoolToken for AmmData.State; - using AmmUpdateProcess for AmmData.Context; - using BlockReader for bytes; - - function beforeBlockSubmission( - AmmData.State storage S, - bytes memory txsData, - bytes calldata callbackData - ) - internal - { - AmmData.Context memory ctx = _getContext(S); - - ctx.approveAmmUpdates(txsData); - - _processPoolTx(S, ctx, txsData, callbackData); - - // Update state - S._totalSupply = ctx.totalSupply; - - // Make sure we have consumed exactly the expected number of transactions - require(txsData.length == ctx.txIdx * ExchangeData.TX_DATA_AVAILABILITY_SIZE, "INVALID_NUM_TXS"); - } - - function _getContext( - AmmData.State storage S - ) - private - view - returns (AmmData.Context memory) - { - uint size = S.tokens.length; - return AmmData.Context({ - txIdx: 0, - domainSeparator: S.domainSeparator, - accountID: S.accountID, - poolTokenID: S.poolTokenID, - feeBips: S.feeBips, - totalSupply: S._totalSupply, - tokens: S.tokens, - tokenBalancesL2: new uint96[](size) - }); - } - - function _processPoolTx( - AmmData.State storage S, - AmmData.Context memory ctx, - bytes memory txsData, - bytes calldata callbackData - ) - private - { - AmmData.PoolTx memory poolTx = abi.decode(callbackData, (AmmData.PoolTx)); - if (poolTx.txType == AmmData.PoolTxType.JOIN) { - S.processJoin( - ctx, - txsData, - abi.decode(poolTx.data, (AmmData.PoolJoin)), - poolTx.signature - ); - } else if (poolTx.txType == AmmData.PoolTxType.EXIT) { - S.processExit( - ctx, - txsData, - abi.decode(poolTx.data, (AmmData.PoolExit)), - poolTx.signature - ); - } else { - revert("INVALID_POOL_TX_TYPE"); - } - } -} diff --git a/packages/loopring_v3/contracts/amm/libamm/AmmData.sol b/packages/loopring_v3/contracts/amm/libamm/AmmData.sol index 805c3c1e9..37e9e5a84 100644 --- a/packages/loopring_v3/contracts/amm/libamm/AmmData.sol +++ b/packages/loopring_v3/contracts/amm/libamm/AmmData.sol @@ -70,7 +70,8 @@ library AmmData struct Context { // functional parameters - uint txIdx; + uint txsDataPtr; + uint txsDataPtrStart; // AMM pool state variables bytes32 domainSeparator; diff --git a/packages/loopring_v3/contracts/amm/libamm/AmmExitProcess.sol b/packages/loopring_v3/contracts/amm/libamm/AmmExitProcess.sol index e80e2d978..ecd4e06a4 100644 --- a/packages/loopring_v3/contracts/amm/libamm/AmmExitProcess.sol +++ b/packages/loopring_v3/contracts/amm/libamm/AmmExitProcess.sol @@ -33,11 +33,10 @@ library AmmExitProcess event ForcedExitProcessed(address owner, uint96 burnAmount, uint96[] amounts); function processExit( - AmmData.State storage S, - AmmData.Context memory ctx, - bytes memory txsData, - AmmData.PoolExit memory exit, - bytes memory signature + AmmData.State storage S, + AmmData.Context memory ctx, + AmmData.PoolExit memory exit, + bytes memory signature ) internal { @@ -58,14 +57,13 @@ library AmmExitProcess delete S.approvedTx[txHash]; } } else if (signature.length == 1) { - ctx.verifySignatureL2(txsData, exit.owner, txHash, signature); + ctx.verifySignatureL2(exit.owner, txHash, signature); } else { require(txHash.verifySignature(exit.owner, signature), "INVALID_OFFCHAIN_APPROVAL"); } (bool slippageOK, uint96[] memory amounts) = _calculateExitAmounts(ctx, exit); - TransferTransaction.Transfer memory transfer; if (isForcedExit) { if (!slippageOK) { AmmUtil.transferOut(address(this), exit.burnAmount, exit.owner); @@ -76,75 +74,110 @@ library AmmExitProcess ctx.totalSupply = ctx.totalSupply.sub(exit.burnAmount); } else { require(slippageOK, "EXIT_SLIPPAGE_INVALID"); - _burnPoolTokenOnL2(ctx, txsData, exit.burnAmount, exit.owner, exit.burnStorageID, signature, transfer); + _burnPoolTokenOnL2(ctx, exit.burnAmount, exit.owner, exit.burnStorageID, signature); } + _processExitTransfers( + ctx, + exit, + amounts + ); + + if (isForcedExit) { + emit ForcedExitProcessed(exit.owner, exit.burnAmount, amounts); + } + } + + function _processExitTransfers( + AmmData.Context memory ctx, + AmmData.PoolExit memory exit, + uint96[] memory amounts + ) + private + view + { // Handle liquidity tokens for (uint i = 0; i < ctx.tokens.length; i++) { - TransferTransaction.readTx(txsData, ctx.txIdx++ * ExchangeData.TX_DATA_AVAILABILITY_SIZE, transfer); + AmmData.Token memory token = ctx.tokens[i]; + // Read the transaction data + (uint packedData, address to, address from) = AmmUtil.readTransfer(ctx); + uint amount = (packedData >> 64) & 0xffffff; + uint fee = (packedData >> 32) & 0xffff; + // Decode floats + amount = (amount & 524287) * (10 ** (amount >> 19)); + fee = (fee & 2047) * (10 ** (fee >> 11)); + + uint targetAmount = uint(amounts[i]); require( - transfer.fromAccountID == ctx.accountID && + // txType == ExchangeData.TransactionType.TRANSFER && + // transfer.type == 1 && + // transfer.fromAccountID == ctx.accountID && // transfer.toAccountID == UNKNOWN && - // transfer.storageID == UNKNOWN && - transfer.from == address(this) && - transfer.to == exit.owner && - transfer.tokenID == ctx.tokens[i].tokenID && - transfer.amount.add(transfer.fee).isAlmostEqualAmount(amounts[i]), + // transfer.tokenID == token.tokenID && + packedData & 0xffffffffffff00000000ffff0000000000000000000000 == + (uint(ExchangeData.TransactionType.TRANSFER) << 176) | (1 << 168) | (uint(ctx.accountID) << 136) | (uint(token.tokenID) << 88) && + // transfer.amount.add(transfer.fee).isAlmostEqualAmount(amounts[i]) + (100000 - 8) * targetAmount <= (amount + fee) * 100000 && (amount + fee) * 100000 <= (100000 + 8) * targetAmount && + from == address(this) && + to == exit.owner, "INVALID_EXIT_TRANSFER_TX_DATA" ); - if (transfer.fee > 0) { + if (fee > 0) { require( i == ctx.tokens.length - 1 && - transfer.feeTokenID == ctx.tokens[i].tokenID && - transfer.fee <= exit.fee, + /*feeTokenID*/(packedData >> 48) & 0xffff == token.tokenID && + fee <= exit.fee, "INVALID_FEES" ); } - ctx.tokenBalancesL2[i] = ctx.tokenBalancesL2[i].sub(transfer.amount); - } - - if (isForcedExit) { - emit ForcedExitProcessed(exit.owner, exit.burnAmount, amounts); + ctx.tokenBalancesL2[i] = ctx.tokenBalancesL2[i].sub(uint96(amount)); } } function _burnPoolTokenOnL2( - AmmData.Context memory ctx, - bytes memory txsData, - uint96 amount, - address from, - uint32 burnStorageID, - bytes memory signature, - TransferTransaction.Transfer memory transfer + AmmData.Context memory ctx, + uint96 burnAmount, + address _from, + uint32 burnStorageID, + bytes memory signature ) internal view { - TransferTransaction.readTx(txsData, ctx.txIdx++ * ExchangeData.TX_DATA_AVAILABILITY_SIZE, transfer); + // Read the transaction data + (uint packedData, address to, address from) = AmmUtil.readTransfer(ctx); + uint amount = (packedData >> 64) & 0xffffff; + // Decode float + amount = (amount & 524287) * (10 ** (amount >> 19)); require( + // txType == ExchangeData.TransactionType.TRANSFER && + // transfer.type == 1 && // transfer.fromAccountID == UNKNOWN && - transfer.toAccountID == ctx.accountID && - transfer.from == from && - transfer.to == address(this) && - transfer.tokenID == ctx.poolTokenID && - transfer.amount.isAlmostEqualAmount(amount) && - transfer.feeTokenID == 0 && - transfer.fee == 0 && - (signature.length == 0 || transfer.storageID == burnStorageID), + // transfer.toAccountID == ctx.accountID && + // transfer.tokenID == ctx.poolTokenID && + // transfer.feeTokenID == 0 && + // transfer.fee == 0 && + packedData & 0xffff00000000ffffffffffff000000ffffffff00000000 == + (uint(ExchangeData.TransactionType.TRANSFER) << 176) | (1 << 168) | (uint(ctx.accountID) << 104) | (uint(ctx.poolTokenID) << 88) && + // transfer.amount.isAlmostEqualAmount(burnAmount) && + (100000 - 8) * burnAmount <= amount * 100000 && amount * 100000 <= (100000 + 8) * burnAmount && + to == address(this) && + from == _from && + (signature.length == 0 || /*storageID*/(packedData & 0xffffffff) == burnStorageID), "INVALID_BURN_TX_DATA" ); // Update pool balance - ctx.totalSupply = ctx.totalSupply.sub(transfer.amount); + ctx.totalSupply = ctx.totalSupply.sub(uint96(amount)); } function _calculateExitAmounts( - AmmData.Context memory ctx, - AmmData.PoolExit memory exit + AmmData.Context memory ctx, + AmmData.PoolExit memory exit ) private pure @@ -159,10 +192,11 @@ library AmmExitProcess uint ratio = uint(AmmData.POOL_TOKEN_BASE).mul(exit.burnAmount) / ctx.totalSupply; for (uint i = 0; i < ctx.tokens.length; i++) { - amounts[i] = (ratio.mul(ctx.tokenBalancesL2[i]) / AmmData.POOL_TOKEN_BASE).toUint96(); - if (amounts[i] < exit.exitMinAmounts[i]) { + uint96 amount = (ratio.mul(ctx.tokenBalancesL2[i]) / AmmData.POOL_TOKEN_BASE).toUint96(); + if (amount < exit.exitMinAmounts[i]) { return (false, amounts); } + amounts[i] = amount; } return (true, amounts); diff --git a/packages/loopring_v3/contracts/amm/libamm/AmmExitRequest.sol b/packages/loopring_v3/contracts/amm/libamm/AmmExitRequest.sol index c4af2d3b4..7510bafea 100644 --- a/packages/loopring_v3/contracts/amm/libamm/AmmExitRequest.sol +++ b/packages/loopring_v3/contracts/amm/libamm/AmmExitRequest.sol @@ -65,9 +65,9 @@ library AmmExitRequest ) internal pure - returns (bytes32) + returns (bytes32 h) { - return EIP712.hashPacked( + /*return EIP712.hashPacked( domainSeparator, keccak256( abi.encode( @@ -80,6 +80,28 @@ library AmmExitRequest exit.validUntil ) ) - ); + );*/ + bytes32 typeHash = POOLEXIT_TYPEHASH; + address owner = exit.owner; + uint burnAmount = exit.burnAmount; + uint burnStorageID = exit.burnStorageID; + uint96[] memory exitMinAmounts = exit.exitMinAmounts; + uint fee = exit.fee; + uint validUntil = exit.validUntil; + assembly { + let data := mload(0x40) + mstore( data , typeHash) + mstore(add(data, 32), owner) + mstore(add(data, 64), burnAmount) + mstore(add(data, 96), burnStorageID) + mstore(add(data, 128), keccak256(add(exitMinAmounts, 32), mul(mload(exitMinAmounts), 32))) + mstore(add(data, 160), fee) + mstore(add(data, 192), validUntil) + let p := keccak256(data, 224) + mstore(data, "\x19\x01") + mstore(add(data, 2), domainSeparator) + mstore(add(data, 34), p) + h := keccak256(data, 66) + } } } diff --git a/packages/loopring_v3/contracts/amm/libamm/AmmJoinProcess.sol b/packages/loopring_v3/contracts/amm/libamm/AmmJoinProcess.sol index 4ec0caa6b..fc8a53fdb 100644 --- a/packages/loopring_v3/contracts/amm/libamm/AmmJoinProcess.sol +++ b/packages/loopring_v3/contracts/amm/libamm/AmmJoinProcess.sol @@ -31,23 +31,21 @@ library AmmJoinProcess // event JoinProcessed(address owner, uint96 mintAmount, uint96[] amounts); function processJoin( - AmmData.State storage S, - AmmData.Context memory ctx, - bytes memory txsData, - AmmData.PoolJoin memory join, - bytes memory signature + AmmData.State storage S, + AmmData.Context memory ctx, + AmmData.PoolJoin memory join, + bytes memory signature ) internal { require(join.validUntil >= block.timestamp, "EXPIRED"); bytes32 txHash = AmmJoinRequest.hash(ctx.domainSeparator, join); - if (signature.length == 0) { require(S.approvedTx[txHash], "INVALID_ONCHAIN_APPROVAL"); delete S.approvedTx[txHash]; } else if (signature.length == 1) { - ctx.verifySignatureL2(txsData, join.owner, txHash, signature); + ctx.verifySignatureL2(join.owner, txHash, signature); } else { require(txHash.verifySignature(join.owner, signature), "INVALID_OFFCHAIN_L1_APPROVAL"); } @@ -56,71 +54,111 @@ library AmmJoinProcess (bool slippageOK, uint96 mintAmount, uint96[] memory amounts) = _calculateJoinAmounts(ctx, join); require(slippageOK, "JOIN_SLIPPAGE_INVALID"); + // Process transfers + _processJoinTransfers( + ctx, + join, + amounts, + signature + ); + + _mintPoolTokenOnL2( + ctx, + mintAmount, + join.owner + ); + + // emit JoinProcessed(join.owner, mintAmount, amounts); + } + + function _processJoinTransfers( + AmmData.Context memory ctx, + AmmData.PoolJoin memory join, + uint96[] memory amounts, + bytes memory signature + ) + private + view + { // Handle liquidity tokens - TransferTransaction.Transfer memory transfer; for (uint i = 0; i < ctx.tokens.length; i++) { - TransferTransaction.readTx(txsData, ctx.txIdx++ * ExchangeData.TX_DATA_AVAILABILITY_SIZE, transfer); + AmmData.Token memory token = ctx.tokens[i]; + + // Read the transaction data + (uint packedData, address to, address from) = AmmUtil.readTransfer(ctx); + uint amount = (packedData >> 64) & 0xffffff; + uint fee = (packedData >> 32) & 0xffff; + + // Decode float + amount = (amount & 524287) * (10 ** (amount >> 19)); + uint targetAmount = uint(amounts[i]); require( + // txType == ExchangeData.TransactionType.TRANSFER && + // transfer.type == 1 && // transfer.fromAccountID == UNKNOWN && - transfer.toAccountID == ctx.accountID && - transfer.from == join.owner && - transfer.to == address(this) && - transfer.tokenID == ctx.tokens[i].tokenID && - transfer.amount.isAlmostEqualAmount(amounts[i]) && - (signature.length == 0 || transfer.storageID == join.joinStorageIDs[i]), + // transfer.toAccountID == ctx.accountID && + // transfer.tokenID == token.tokenID && + packedData & 0xffff00000000ffffffffffff0000000000000000000000 == + (uint(ExchangeData.TransactionType.TRANSFER) << 176) | (1 << 168) | (uint(ctx.accountID) << 104) | (uint(token.tokenID) << 88) && + (100000 - 8) * targetAmount <= amount * 100000 && amount * 100000 <= (100000 + 8) * targetAmount && + (signature.length == 0 || /*storageID*/(packedData & 0xffffffff) == join.joinStorageIDs[i]) && + from == join.owner && + to == address(this), "INVALID_JOIN_TRANSFER_TX_DATA" ); - if (transfer.fee > 0) { + if (fee > 0) { + // Decode float + fee = (fee & 2047) * (10 ** (fee >> 11)); require( i == ctx.tokens.length - 1 && - transfer.feeTokenID == ctx.tokens[i].tokenID && - transfer.fee <= join.fee, + /*feeTokenID*/(packedData >> 48) & 0xffff == token.tokenID && + fee <= join.fee, "INVALID_FEES" ); } - ctx.tokenBalancesL2[i] = ctx.tokenBalancesL2[i].add(transfer.amount); + ctx.tokenBalancesL2[i] = ctx.tokenBalancesL2[i].add(uint96(amount)); } - - _mintPoolTokenOnL2(ctx, txsData, mintAmount, join.owner, transfer); - - // emit JoinProcessed(join.owner, mintAmount, amounts); } function _mintPoolTokenOnL2( - AmmData.Context memory ctx, - bytes memory txsData, - uint96 amount, - address to, - TransferTransaction.Transfer memory transfer + AmmData.Context memory ctx, + uint mintAmount, + address _to ) private view { - TransferTransaction.readTx(txsData, ctx.txIdx++ * ExchangeData.TX_DATA_AVAILABILITY_SIZE, transfer); + // Read the transaction data + (uint packedData, address to, address from) = AmmUtil.readTransfer(ctx); + uint amount = (packedData >> 64) & 0xffffff; + // Decode float + amount = (amount & 524287) * (10 ** (amount >> 19)); require( - transfer.fromAccountID == ctx.accountID && + // txType == ExchangeData.TransactionType.TRANSFER && + // transfer.type == 1 && + // transfer.fromAccountID == ctx.accountID && // transfer.toAccountID == UNKNOWN && - transfer.from == address(this) && - transfer.to == to && - transfer.tokenID == ctx.poolTokenID && - transfer.amount.isAlmostEqualAmount(amount) && - transfer.feeTokenID == 0 && - transfer.fee == 0, - // transfer.storageID == UNKNOWN && + // transfer.tokenID == ctx.poolTokenID && + packedData & 0xffffffffffff00000000ffff000000ffffffff00000000 == + (uint(ExchangeData.TransactionType.TRANSFER) << 176) | (1 << 168) | (uint(ctx.accountID) << 136) | (uint(ctx.poolTokenID) << 88) && + // transfer.amount.isAlmostEqualAmount(mintAmount) && + (100000 - 8) * mintAmount <= amount * 100000 && amount * 100000 <= (100000 + 8) * mintAmount && + to == _to && + from == address(this), "INVALID_MINT_TX_DATA" ); // Update pool balance - ctx.totalSupply = ctx.totalSupply.add(transfer.amount); + ctx.totalSupply = ctx.totalSupply.add(uint96(amount)); } function _calculateJoinAmounts( - AmmData.Context memory ctx, - AmmData.PoolJoin memory join + AmmData.Context memory ctx, + AmmData.PoolJoin memory join ) private pure diff --git a/packages/loopring_v3/contracts/amm/libamm/AmmJoinRequest.sol b/packages/loopring_v3/contracts/amm/libamm/AmmJoinRequest.sol index b322580a1..1ca9733b6 100644 --- a/packages/loopring_v3/contracts/amm/libamm/AmmJoinRequest.sol +++ b/packages/loopring_v3/contracts/amm/libamm/AmmJoinRequest.sol @@ -52,9 +52,9 @@ library AmmJoinRequest ) internal pure - returns (bytes32) + returns (bytes32 h) { - return EIP712.hashPacked( + /*return EIP712.hashPacked( domainSeparator, keccak256( abi.encode( @@ -67,6 +67,28 @@ library AmmJoinRequest join.validUntil ) ) - ); + );*/ + bytes32 typeHash = POOLJOIN_TYPEHASH; + address owner = join.owner; + uint96[] memory joinAmounts = join.joinAmounts; + uint32[] memory storageIDs = join.joinStorageIDs; + uint mintMinAmount = join.mintMinAmount; + uint fee = join.fee; + uint validUntil = join.validUntil; + assembly { + let data := mload(0x40) + mstore( data , typeHash) + mstore(add(data, 32), owner) + mstore(add(data, 64), keccak256(add(joinAmounts, 32), mul(mload(joinAmounts), 32))) + mstore(add(data, 96), keccak256(add(storageIDs, 32), mul(mload(storageIDs), 32))) + mstore(add(data, 128), mintMinAmount) + mstore(add(data, 160), fee) + mstore(add(data, 192), validUntil) + let p := keccak256(data, 224) + mstore(data, "\x19\x01") + mstore(add(data, 2), domainSeparator) + mstore(add(data, 34), p) + h := keccak256(data, 66) + } } } diff --git a/packages/loopring_v3/contracts/amm/libamm/AmmTransactionReceiver.sol b/packages/loopring_v3/contracts/amm/libamm/AmmTransactionReceiver.sol new file mode 100644 index 000000000..f0a89a664 --- /dev/null +++ b/packages/loopring_v3/contracts/amm/libamm/AmmTransactionReceiver.sol @@ -0,0 +1,108 @@ +// SPDX-License-Identifier: Apache-2.0 +// Copyright 2017 Loopring Technology Limited. +pragma solidity ^0.7.0; +pragma experimental ABIEncoderV2; + +import "../../core/impl/libtransactions/BlockReader.sol"; +import "../../lib/MathUint.sol"; +import "./AmmData.sol"; +import "./AmmExitProcess.sol"; +import "./AmmJoinProcess.sol"; +import "./AmmPoolToken.sol"; +import "./AmmUpdateProcess.sol"; + + +/// @title AmmTransactionReceiver +library AmmTransactionReceiver +{ + using AmmExitProcess for AmmData.State; + using AmmJoinProcess for AmmData.State; + using AmmPoolToken for AmmData.State; + using AmmUpdateProcess for AmmData.Context; + using BlockReader for bytes; + + function onReceiveTransactions( + AmmData.State storage S, + bytes calldata txsData, + bytes calldata callbackData + ) + internal + { + AmmData.Context memory ctx = _getContext(S, txsData); + + ctx.approveAmmUpdates(); + + _processPoolTx(S, ctx, callbackData); + + // Update state + S._totalSupply = ctx.totalSupply; + + // Make sure we have consumed exactly the expected number of transactions + require(txsData.length == ctx.txsDataPtr - ctx.txsDataPtrStart, "INVALID_NUM_TXS"); + } + + function _getContext( + AmmData.State storage S, + bytes calldata txsData + ) + private + view + returns (AmmData.Context memory) + { + uint size = S.tokens.length; + uint txsDataPtr = 23; + assembly { + txsDataPtr := sub(add(txsData.offset, txsDataPtr), 32) + } + return AmmData.Context({ + txsDataPtr: txsDataPtr, + txsDataPtrStart: txsDataPtr, + domainSeparator: S.domainSeparator, + accountID: S.accountID, + poolTokenID: S.poolTokenID, + feeBips: S.feeBips, + totalSupply: S._totalSupply, + tokens: S.tokens, + tokenBalancesL2: new uint96[](size) + }); + } + + function _processPoolTx( + AmmData.State storage S, + AmmData.Context memory ctx, + bytes calldata callbackData + ) + private + { + // Manually decode the encoded PoolTx in `callbackData` + AmmData.PoolTxType txType; + bytes calldata data; + bytes calldata signature; + assembly { + txType := calldataload(add(callbackData.offset, 0x20)) + + data.offset := add(add(callbackData.offset, 0x20), calldataload(add(callbackData.offset, 0x40))) + data.length := calldataload(data.offset) + data.offset := add(data.offset, 0x20) + + signature.offset := add(add(callbackData.offset, 0x20), calldataload(add(callbackData.offset, 0x60))) + signature.length := calldataload(signature.offset) + signature.offset := add(signature.offset, 0x20) + } + if (txType == AmmData.PoolTxType.JOIN) { + S.processJoin( + ctx, + abi.decode(data, (AmmData.PoolJoin)), + signature + ); + } else if (txType == AmmData.PoolTxType.EXIT) { + S.processExit( + ctx, + abi.decode(data, (AmmData.PoolExit)), + signature + ); + } else { + revert("INVALID_POOL_TX_TYPE"); + } + } +} diff --git a/packages/loopring_v3/contracts/amm/libamm/AmmUpdateProcess.sol b/packages/loopring_v3/contracts/amm/libamm/AmmUpdateProcess.sol index 0c62d0869..f00dc34a4 100644 --- a/packages/loopring_v3/contracts/amm/libamm/AmmUpdateProcess.sol +++ b/packages/loopring_v3/contracts/amm/libamm/AmmUpdateProcess.sol @@ -15,27 +15,36 @@ library AmmUpdateProcess using TransactionReader for ExchangeData.Block; function approveAmmUpdates( - AmmData.Context memory ctx, - bytes memory txsData + AmmData.Context memory ctx ) internal view { - AmmUpdateTransaction.AmmUpdate memory update; + uint txsDataPtr = ctx.txsDataPtr + 5; for (uint i = 0; i < ctx.tokens.length; i++) { - // Check that the AMM update in the block matches the expected update - AmmUpdateTransaction.readTx(txsData, ctx.txIdx++ * ExchangeData.TX_DATA_AVAILABILITY_SIZE, update); + // txType | owner | accountID | tokenID | feeBips + uint packedDataA; + // tokenWeight | nonce | balance + uint packedDataB; + assembly { + packedDataA := calldataload(txsDataPtr) + packedDataB := calldataload(add(txsDataPtr, 28)) + } + + AmmData.Token memory token = ctx.tokens[i]; require( - update.owner == address(this) && - update.accountID == ctx.accountID && - update.tokenID == ctx.tokens[i].tokenID && - update.feeBips == ctx.feeBips && - update.tokenWeight == ctx.tokens[i].weight, + packedDataA & 0xffffffffffffffffffffffffffffffffffffffffffffffffffffffff == + (uint(ExchangeData.TransactionType.AMM_UPDATE) << 216) | (uint(address(this)) << 56) | (ctx.accountID << 24) | (token.tokenID << 8) | ctx.feeBips && + (packedDataB >> 128) & 0xffffffffffffffffffffffff == token.weight, "INVALID_AMM_UPDATE_TX_DATA" ); - ctx.tokenBalancesL2[i] = update.balance; + ctx.tokenBalancesL2[i] = uint96(packedDataB & 0xffffffffffffffffffffffff); + + txsDataPtr += ExchangeData.TX_DATA_AVAILABILITY_SIZE; } + + ctx.txsDataPtr += ExchangeData.TX_DATA_AVAILABILITY_SIZE * ctx.tokens.length; } } diff --git a/packages/loopring_v3/contracts/amm/libamm/AmmUtil.sol b/packages/loopring_v3/contracts/amm/libamm/AmmUtil.sol index d274e9c41..1fdab5adc 100644 --- a/packages/loopring_v3/contracts/amm/libamm/AmmUtil.sol +++ b/packages/loopring_v3/contracts/amm/libamm/AmmUtil.sol @@ -24,11 +24,10 @@ library AmmUtil uint8 public constant L2_SIGNATURE_TYPE = 16; function verifySignatureL2( - AmmData.Context memory ctx, - bytes memory txsData, - address owner, - bytes32 txHash, - bytes memory signature + AmmData.Context memory ctx, + address owner, + bytes32 txHash, + bytes memory signature ) internal pure @@ -37,15 +36,38 @@ library AmmUtil require(signature.toUint8Unsafe(0) == L2_SIGNATURE_TYPE, "INVALID_SIGNATURE_TYPE"); // Read the signature verification transaction - SignatureVerificationTransaction.SignatureVerification memory verification; - SignatureVerificationTransaction.readTx(txsData, ctx.txIdx++ * ExchangeData.TX_DATA_AVAILABILITY_SIZE, verification); + uint txsDataPtr = ctx.txsDataPtr - 2; + uint packedData; + uint data; + assembly { + packedData := calldataload(txsDataPtr) + data := calldataload(add(txsDataPtr, 36)) + } // Verify that the hash was signed on L2 require( - verification.owner == owner && - verification.data == uint(txHash) >> 3, + packedData & 0xffffffffffffffffffffffffffffffffffffffffff == + (uint(ExchangeData.TransactionType.SIGNATURE_VERIFICATION) << 160) | (uint(owner) & 0x00ffffffffffffffffffffffffffffffffffffffff) && + data == uint(txHash) >> 3, "INVALID_OFFCHAIN_L2_APPROVAL" ); + + ctx.txsDataPtr += ExchangeData.TX_DATA_AVAILABILITY_SIZE; + } + + function readTransfer(AmmData.Context memory ctx) + internal + pure + returns (uint packedData, address to, address from) + { + uint txsDataPtr = ctx.txsDataPtr; + // packedData: txType (1) | type (1) | fromAccountID (4) | toAccountID (4) | tokenID (2) | amount (3) | feeTokenID (2) | fee (2) | storageID (4) + assembly { + packedData := calldataload(txsDataPtr) + to := and(calldataload(add(txsDataPtr, 20)), 0xffffffffffffffffffffffffffffffffffffffff) + from := and(calldataload(add(txsDataPtr, 40)), 0xffffffffffffffffffffffffffffffffffffffff) + } + ctx.txsDataPtr += ExchangeData.TX_DATA_AVAILABILITY_SIZE; } function isAlmostEqualAmount( @@ -56,15 +78,12 @@ library AmmUtil pure returns (bool) { - if (targetAmount == 0) { - return amount == 0; - } else { - // Max rounding error for a float24 is 2/100000 - // But relayer may use float rounding multiple times - // so the range is expanded to [100000 - 8, 100000 + 8] - uint ratio = (uint(amount) * 100000) / uint(targetAmount); - return (100000 - 8) <= ratio && ratio <= (100000 + 8); - } + uint _amount = uint(amount) * 100000; + uint _targetAmount = uint(targetAmount); + // Max rounding error for a float24 is 2/100000 + // But relayer may use float rounding multiple times + // so the range is expanded to [100000 - 8, 100000 + 8] + return (100000 - 8) * _targetAmount <= _amount && _amount <= (100000 + 8) * _targetAmount; } function isAlmostEqualFee( diff --git a/packages/loopring_v3/contracts/aux/access/IBlockReceiver.sol b/packages/loopring_v3/contracts/aux/access/ITransactionReceiver.sol similarity index 63% rename from packages/loopring_v3/contracts/aux/access/IBlockReceiver.sol rename to packages/loopring_v3/contracts/aux/access/ITransactionReceiver.sol index f8d133330..1f740ed9c 100644 --- a/packages/loopring_v3/contracts/aux/access/IBlockReceiver.sol +++ b/packages/loopring_v3/contracts/aux/access/ITransactionReceiver.sol @@ -6,13 +6,13 @@ pragma experimental ABIEncoderV2; import "../../core/iface/ExchangeData.sol"; import "../../amm/libamm/AmmData.sol"; -/// @title IBlockReceiver +/// @title ITransactionReceiver /// @author Brecht Devos - -abstract contract IBlockReceiver +abstract contract ITransactionReceiver { - function beforeBlockSubmission( - bytes calldata txsData, - bytes calldata callbackData + function onReceiveTransactions( + bytes calldata txsData, + bytes calldata callbackData ) external virtual; diff --git a/packages/loopring_v3/contracts/aux/access/LoopringIOExchangeOwner.sol b/packages/loopring_v3/contracts/aux/access/LoopringIOExchangeOwner.sol index 5030011df..5cf6ecb5a 100644 --- a/packages/loopring_v3/contracts/aux/access/LoopringIOExchangeOwner.sol +++ b/packages/loopring_v3/contracts/aux/access/LoopringIOExchangeOwner.sol @@ -13,7 +13,7 @@ import "../../lib/ERC1271.sol"; import "../../lib/MathUint.sol"; import "../../lib/SignatureUtil.sol"; import "./SelectorBasedAccessManager.sol"; -import "./IBlockReceiver.sol"; +import "./ITransactionReceiver.sol"; contract LoopringIOExchangeOwner is SelectorBasedAccessManager, ERC1271, Drainable @@ -38,16 +38,16 @@ contract LoopringIOExchangeOwner is SelectorBasedAccessManager, ERC1271, Drainab bytes data; } - struct BlockCallback + struct TransactionReceiverCallback { - uint16 blockIdx; - TxCallback[] txCallbacks; + uint16 blockIdx; + TxCallback[] txCallbacks; } - struct CallbackConfig + struct TransactionReceiverCallbacks { - BlockCallback[] blockCallbacks; - address[] receivers; + TransactionReceiverCallback[] callbacks; + address[] receivers; } struct PostBlocksCallback @@ -97,15 +97,15 @@ contract LoopringIOExchangeOwner is SelectorBasedAccessManager, ERC1271, Drainab } function submitBlocksWithCallbacks( - bool isDataCompressed, - bytes calldata data, - CallbackConfig calldata config, - ExchangeData.FlashMint[] calldata flashMints, - PostBlocksCallback[] calldata postBlocksCallbacks + bool isDataCompressed, + bytes calldata data, + TransactionReceiverCallbacks calldata config, + ExchangeData.FlashMint[] calldata flashMints, + PostBlocksCallback[] calldata postBlocksCallbacks ) external { - if (config.blockCallbacks.length > 0) { + if (config.callbacks.length > 0) { require(config.receivers.length > 0, "MISSING_RECEIVERS"); // Make sure the receiver is authorized to approve transactions @@ -152,8 +152,8 @@ contract LoopringIOExchangeOwner is SelectorBasedAccessManager, ERC1271, Drainab } function _verifyTransactions( - ExchangeData.Block[] memory blocks, - CallbackConfig calldata config + ExchangeData.Block[] memory blocks, + TransactionReceiverCallbacks calldata config ) private { @@ -165,10 +165,10 @@ contract LoopringIOExchangeOwner is SelectorBasedAccessManager, ERC1271, Drainab // Process transactions int lastBlockIdx = -1; - for (uint i = 0; i < config.blockCallbacks.length; i++) { - BlockCallback calldata blockCallback = config.blockCallbacks[i]; + for (uint i = 0; i < config.callbacks.length; i++) { + TransactionReceiverCallback calldata callback = config.callbacks[i]; - uint16 blockIdx = blockCallback.blockIdx; + uint16 blockIdx = callback.blockIdx; require(blockIdx > lastBlockIdx, "BLOCK_INDEX_OUT_OF_ORDER"); lastBlockIdx = int(blockIdx); @@ -177,7 +177,7 @@ contract LoopringIOExchangeOwner is SelectorBasedAccessManager, ERC1271, Drainab _processTxCallbacks( _block, - blockCallback.txCallbacks, + callback.txCallbacks, config.receivers, preApprovedTxs[blockIdx] ); @@ -192,13 +192,14 @@ contract LoopringIOExchangeOwner is SelectorBasedAccessManager, ERC1271, Drainab auxiliaryData := add(blockAuxData, 64) } + uint txIdx; + bool approved; + uint auxOffset; for(uint j = 0; j < auxiliaryData.length; j++) { // Load the data from auxiliaryData, which is still encoded as calldata - uint txIdx; - bool approved; assembly { // Offset to auxiliaryData[j] - let auxOffset := mload(add(auxiliaryData, add(32, mul(32, j)))) + auxOffset := mload(add(auxiliaryData, add(32, mul(32, j)))) // Load `txIdx` (pos 0) and `approved` (pos 1) in auxiliaryData[j] txIdx := mload(add(add(32, auxiliaryData), auxOffset)) approved := mload(add(add(64, auxiliaryData), auxOffset)) @@ -216,9 +217,13 @@ contract LoopringIOExchangeOwner is SelectorBasedAccessManager, ERC1271, Drainab private { for (uint i = 0; i < postBlocksCallbacks.length; i++) { - // Disallow calls to the exchange and pre block callback contracts - require(postBlocksCallbacks[i].to != target, "EXCHANGE_CANNOT_BE_POST_CALLBACK_TARGET"); - require(postBlocksCallbacks[i].data.toBytes4(0) != IBlockReceiver.beforeBlockSubmission.selector, "INVALID_POST_CALLBACK_FUNCTION"); + // Disallow calls to self, the exchange and TransactionReceiver functions + require( + postBlocksCallbacks[i].to != target && + postBlocksCallbacks[i].to != address(this), + "EXCHANGE_CANNOT_BE_POST_CALLBACK_TARGET" + ); + require(postBlocksCallbacks[i].data.toBytes4(0) != ITransactionReceiver.onReceiveTransactions.selector, "INVALID_POST_CALLBACK_FUNCTION"); (bool success, bytes memory returnData) = postBlocksCallbacks[i].to.call(postBlocksCallbacks[i].data); if (!success) { assembly { revert(add(returnData, 32), mload(returnData)) } @@ -240,25 +245,15 @@ contract LoopringIOExchangeOwner is SelectorBasedAccessManager, ERC1271, Drainab uint cursor = 0; - // Reuse the data when possible to save on some memory alloc gas - bytes memory txsData = new bytes(txCallbacks[0].numTxs * ExchangeData.TX_DATA_AVAILABILITY_SIZE); for (uint i = 0; i < txCallbacks.length; i++) { TxCallback calldata txCallback = txCallbacks[i]; + require(txCallback.receiverIdx < receivers.length, "INVALID_RECEIVER_INDEX"); uint txIdx = uint(txCallback.txIdx); require(txIdx >= cursor, "TX_INDEX_OUT_OF_ORDER"); - require(txCallback.receiverIdx < receivers.length, "INVALID_RECEIVER_INDEX"); - - uint txsDataLength = ExchangeData.TX_DATA_AVAILABILITY_SIZE*txCallback.numTxs; - if (txsData.length != txsDataLength) { - txsData = new bytes(txsDataLength); - } - _block.readTxs(txIdx, txCallback.numTxs, txsData); - IBlockReceiver(receivers[txCallback.receiverIdx]).beforeBlockSubmission( - txsData, - txCallback.data - ); + // Execute callback + _callCallback(_block, txCallback, receivers[txCallback.receiverIdx]); // Now that the transactions have been verified, mark them as approved for (uint j = txIdx; j < txIdx + txCallback.numTxs; j++) { @@ -269,6 +264,52 @@ contract LoopringIOExchangeOwner is SelectorBasedAccessManager, ERC1271, Drainab } } + function _callCallback( + ExchangeData.Block memory _block, + TxCallback calldata txCallback, + address receiver + ) + private + { + bytes memory txData; + bytes memory txsData; + + // Construct the calldata passed into the callback call + bytes calldata callbackData = txCallback.data; + bytes4 selector = ITransactionReceiver.onReceiveTransactions.selector; + + uint txsDataLength = ExchangeData.TX_DATA_AVAILABILITY_SIZE*txCallback.numTxs; + uint callbackDataLength = txCallback.data.length; + // Bytes arrays are always padded with zeros so they are aligned to 32 bytes + uint newCallbackDataOffset = 32 + 32 + 32 + ((txsDataLength + 31) / 32 * 32); + uint totalLength = 32 + newCallbackDataOffset + 32 + ((callbackDataLength + 31) / 32 * 32); + assembly { + txData := mload(0x40) + mstore(txData, totalLength) + mstore(add(txData, 32), selector) + + // Offset to txsData + mstore(add(txData, 36), 0x40) + // Offset to callbackData + mstore(add(txData, 68), newCallbackDataOffset) + + // txsData + txsData := add(txData, 100) + mstore(txsData, txsDataLength) + + // callbackData + calldatacopy(add(txData, add(36, newCallbackDataOffset)), sub(callbackData.offset, 32), add(callbackDataLength, 32)) + + mstore(0x40, add(add(txData, totalLength), 32)) + } + + // Copy the necessary block transaction data directly to the correct place in the calldata + _block.readTxs(uint(txCallback.txIdx), txCallback.numTxs, txsData); + + // Do the actual call with the constructed calldata + receiver.fastCallAndVerify(gasleft(), 0, txData); + } + function _decodeBlocks(bytes memory data) private pure diff --git a/packages/loopring_v3/contracts/aux/bridge/Bridge.sol b/packages/loopring_v3/contracts/aux/bridge/Bridge.sol index ca30aabdc..68a9691f4 100644 --- a/packages/loopring_v3/contracts/aux/bridge/Bridge.sol +++ b/packages/loopring_v3/contracts/aux/bridge/Bridge.sol @@ -4,52 +4,64 @@ pragma solidity ^0.7.0; pragma experimental ABIEncoderV2; import "../../core/iface/IExchangeV3.sol"; -import "../../core/impl/libtransactions/BlockReader.sol"; import "../../core/impl/libtransactions/TransferTransaction.sol"; -import "../../core/impl/libtransactions/SignatureVerificationTransaction.sol"; import "../../core/impl/libtransactions/WithdrawTransaction.sol"; import "../../lib/AddressUtil.sol"; import "../../lib/ERC20SafeTransfer.sol"; import "../../lib/ERC20.sol"; import "../../lib/MathUint.sol"; import "../../lib/MathUint96.sol"; -import "../../thirdparty/BytesUtil.sol"; +import "../../lib/ReentrancyGuard.sol"; import "./BridgeData.sol"; import "./IBridgeConnector.sol"; /// @title Bridge -contract Bridge is Claimable +contract Bridge is ReentrancyGuard, Claimable { using AddressUtil for address; + using AddressUtil for address payable; using BytesUtil for bytes; - using BlockReader for bytes; using ERC20SafeTransfer for address; using MathUint for uint; using MathUint96 for uint96; + // Transfers packed as: + // - address owner : 20 bytes + // - uint96 amount : 12 bytes + // - uint16 tokenID: 2 bytes + event Transfers (uint batchID, bytes transfers, address from); + + event ConnectorCallResult (address connector, bool success, bytes reason); + + event ConnectorTrusted (address connector, bool trusted); + struct Context { - bytes32 domainSeparator; - uint32 accountID; - uint txIdx; + TokenData[] tokens; + uint tokensOffset; + uint txsDataPtr; + uint txsDataPtrStart; } - struct HashData + struct CallTransfer { - address connector; - bytes groupData; - TransferTransaction.Transfer transfer; - BridgeCall call; + uint fromAccountID; + uint tokenID; + uint amount; + uint feeTokenID; + uint fee; + uint storageID; + uint packedData; } bytes32 constant public BRIDGE_CALL_TYPEHASH = keccak256( - "BridgeCall(address from,address to,uint16 tokenID,uint96 amount,uint16 feeTokenID,uint96 maxFee,uint32 storageID,uint32 minGas,address connector,bytes groupData,bytes userData,uint256 validUntil)" + "BridgeCall(uint16 tokenID,uint96 amount,uint16 feeTokenID,uint96 maxFee,uint32 validUntil,uint32 storageID,uint32 minGas,address connector,bytes groupData,bytes userData)" ); uint public constant MAX_NUM_TRANSACTIONS_IN_BLOCK = 386; - uint public constant MAX_AGE_PENDING_TRANSFERS = 7 days; + uint public constant MAX_AGE_PENDING_TRANSFER = 7 days; uint public constant MAX_FEE_BIPS = 25; // 0.25% uint public constant GAS_LIMIT_CHECK_GAS_LIMIT = 10000; @@ -58,25 +70,17 @@ contract Bridge is Claimable IDepositContract public immutable depositContract; bytes32 public immutable DOMAIN_SEPARATOR; + address public exchangeOwner; - address public exchangeOwner; - - mapping (bytes32 => uint) public pendingTransfers; - mapping (bytes32 => mapping(uint => bool)) public withdrawn; + mapping (uint => mapping (bytes32 => uint)) public pendingTransfers; + mapping (uint => mapping(uint => bool)) public withdrawn; - mapping (address => bool) public trustedConnectors; + mapping (address => bool) public trustedConnectors; - uint public batchIDGenerator; + uint public batchIDGenerator; // token -> tokenID - mapping (address => uint16) public cachedTokenIDs; - - event Transfers(uint batchID, InternalBridgeTransfer[] transfers); - - event BridgeCallSuccess (address connector); - event BridgeCallFailed (address connector, string reason); - - event ConnectorTrusted (address connector, bool trusted); + mapping (address => uint16) public cachedTokenIDs; modifier onlyFromExchangeOwner() { @@ -101,94 +105,80 @@ contract Bridge is Claimable function batchDeposit( BridgeTransfer[] memory deposits ) - external + public payable { - // Needs to be possible to do all transfers in a single block - require(deposits.length <= MAX_NUM_TRANSACTIONS_IN_BLOCK, "MAX_DEPOSITS_EXCEEDED"); - - // Transfers to be done - InternalBridgeTransfer[] memory transfers = new InternalBridgeTransfer[](deposits.length); - - // Worst case scenario all tokens are different - TokenData[] memory tokens = new TokenData[](deposits.length); - uint numDistinctTokens = 0; - - // Run over all deposits summing up total amounts per token - address token = address(-1); - uint tokenIdx = 0; - for (uint i = 0; i < deposits.length; i++) { - if(token != deposits[i].token) { - token = deposits[i].token; - tokenIdx = 0; - while(tokenIdx < numDistinctTokens && tokens[tokenIdx].token != token) { - tokenIdx++; - } - if (tokenIdx == numDistinctTokens) { - tokens[tokenIdx].token = token; - tokens[tokenIdx].tokenID = _getTokenID(token); - numDistinctTokens++; - } - } - tokens[tokenIdx].amount = tokens[tokenIdx].amount.add(deposits[i].amount); - deposits[i].token = address(tokens[tokenIdx].tokenID); - - transfers[i].owner = deposits[i].owner; - transfers[i].tokenID = tokens[tokenIdx].tokenID; - transfers[i].amount = deposits[i].amount; - } - - // Do a normal deposit per token - for(uint i = 0; i < numDistinctTokens; i++) { - if (tokens[i].token == address(0)) { - require(tokens[i].amount == msg.value, "INVALID_ETH_DEPOSIT"); - } - _deposit(msg.sender, tokens[i].token, uint96(tokens[i].amount)); - } - - // Store the transfers so they can be processed later - _storeTransfers(transfers); + BridgeTransfer[][] memory _deposits = new BridgeTransfer[][](1); + _deposits[0] = deposits; + _batchDeposit(msg.sender,_deposits); } - function beforeBlockSubmission( - bytes memory txsData, - bytes calldata callbackData + function onReceiveTransactions( + bytes calldata txsData, + bytes calldata /*callbackData*/ ) external onlyFromExchangeOwner { - BridgeOperations memory operations = abi.decode(callbackData, (BridgeOperations)); - + uint txsDataPtr = 23; + assembly { + txsDataPtr := sub(add(txsData.offset, txsDataPtr), 32) + } Context memory ctx = Context({ - domainSeparator: DOMAIN_SEPARATOR, - accountID: accountID, - txIdx: 0 + tokens: new TokenData[](0), + tokensOffset: 0, + txsDataPtr: txsDataPtr, + txsDataPtrStart: txsDataPtr }); - _processTransfers(ctx, operations.transferBatches, txsData); - _processCalls(ctx, operations, txsData); + _processTransactions(ctx); // Make sure we have consumed exactly the expected number of transactions - require(txsData.length == ctx.txIdx * ExchangeData.TX_DATA_AVAILABILITY_SIZE, "INVALID_NUM_TXS"); + require(txsData.length == ctx.txsDataPtr - ctx.txsDataPtrStart, "INVALID_NUM_TXS"); } - // Allows withdrawing from pending transfers that are at least MAX_AGE_PENDING_TRANSFERS old. + // Allows withdrawing from pending transfers that are at least MAX_AGE_PENDING_TRANSFER old. function withdrawFromPendingBatchDeposit( - uint batchID, - InternalBridgeTransfer[] calldata transfers, - uint[] calldata indices + uint batchID, + InternalBridgeTransfer[] memory transfers, + uint[] memory indices ) external + nonReentrant { + bytes memory transfersData = new bytes(transfers.length * 34); + assembly { + transfersData := add(transfersData, 32) + } + + for (uint i = 0; i < transfers.length; i++) { + InternalBridgeTransfer memory transfer = transfers[i]; + // Pack the transfer data to compare agains batch deposit hash + address owner = transfer.owner; + uint16 tokenID = transfer.tokenID; + uint amount = transfer.amount; + assembly { + mstore(add(transfersData, 2), tokenID) + mstore( transfersData , or(shl(96, owner), amount)) + transfersData := add(transfersData, 34) + } + } + + // Get the original transfers ptr back + uint numTransfers = transfers.length; + assembly { + transfersData := sub(transfersData, add(32, mul(34, numTransfers))) + } + // Check if withdrawing from these transfers is possible - bytes32 hash = _hashTransfers(batchID, transfers); - require(_arePendingTransfersTooOld(hash), "TRANSFERS_NOT_TOO_OLD"); + bytes32 hash = _hashTransferBatch(transfersData); + require(_arePendingTransfersTooOld(batchID, hash), "TRANSFERS_NOT_TOO_OLD"); for (uint i = 0; i < indices.length; i++) { uint idx = indices[i]; - require(!withdrawn[hash][idx], "ALREADY_WITHDRAWN"); - withdrawn[hash][idx] = true; + require(!withdrawn[batchID][idx], "ALREADY_WITHDRAWN"); + withdrawn[batchID][idx] = true; address tokenAddress = exchange.getTokenAddress(transfers[idx].tokenID); @@ -205,6 +195,7 @@ contract Bridge is Claimable function forceWithdraw(address[] calldata tokens) external payable + nonReentrant { for (uint i = 0; i < tokens.length; i++) { exchange.forceWithdraw{value: msg.value / tokens.length}( @@ -233,171 +224,360 @@ contract Bridge is Claimable // --- Internal functions --- - function _processTransfers( - Context memory ctx, - TransferBatch[] memory operations, - bytes memory txsData + function _batchDeposit( + address from, + BridgeTransfer[][] memory deposits ) internal { - for (uint o = 0; o < operations.length; o++) { - InternalBridgeTransfer[] memory transfers = operations[o].transfers; + uint totalNumDeposits = 0; + for (uint i = 0; i < deposits.length; i++) { + totalNumDeposits += deposits[i].length; + } + if (totalNumDeposits == 0) { + return; + } - // Check if these transfers can be processed - bytes32 hash = _hashTransfers(operations[o].batchID, transfers); - require(!_arePendingTransfersTooOld(hash), "TRANSFERS_TOO_OLD"); + // Needs to be possible to do all transfers in a single block + require(totalNumDeposits <= MAX_NUM_TRANSACTIONS_IN_BLOCK, "MAX_DEPOSITS_EXCEEDED"); - // Mark transfers as completed - pendingTransfers[hash] = 0; + // Transfers to be done + bytes memory transfers = new bytes(totalNumDeposits * 34); + assembly { + transfers := add(transfers, 32) + } - // Verify transfers - TransferTransaction.Transfer memory transfer; - for (uint i = 0; i < transfers.length; i++) { - TransferTransaction.readTx(txsData, ctx.txIdx++ * ExchangeData.TX_DATA_AVAILABILITY_SIZE, transfer); + // Worst case scenario all tokens are different + TokenData[] memory tokens = new TokenData[](totalNumDeposits); + uint numDistinctTokens = 0; - uint16 tokenID = transfers[i].tokenID; - require( - transfer.fromAccountID == ctx.accountID && - transfer.to == transfers[i].owner && - transfer.from == address(this) && - transfer.tokenID == tokenID && - transfer.feeTokenID == tokenID && - _isAlmostEqualAmount(transfer.amount, transfers[i].amount) && - transfer.fee <= (uint(transfer.amount).mul(MAX_FEE_BIPS) / 10000), - "INVALID_BRIDGE_TRANSFER_TX_DATA" - ); + // Run over all deposits summing up total amounts per token + address token = address(-1); + uint tokenIdx = 0; + uint16 tokenID; + BridgeTransfer memory deposit; + for (uint n = 0; n < deposits.length; n++) { + BridgeTransfer[] memory _deposits = deposits[n]; + for (uint i = 0; i < _deposits.length; i++) { + deposit = _deposits[i]; + if(token != deposit.token) { + token = deposit.token; + tokenIdx = 0; + while(tokenIdx < numDistinctTokens && tokens[tokenIdx].token != token) { + tokenIdx++; + } + if (tokenIdx == numDistinctTokens) { + tokens[tokenIdx].token = token; + tokens[tokenIdx].tokenID = _getTokenID(token); + numDistinctTokens++; + } + tokenID = tokens[tokenIdx].tokenID; + } + tokens[tokenIdx].amount = tokens[tokenIdx].amount.add(deposit.amount); + + // Pack the transfer data together + assembly { + mstore(add(transfers, 2), tokenID) + mstore( transfers , or(shl(96, mload(deposit)), mload(add(deposit, 64)))) + transfers := add(transfers, 34) + } } } + + // Get the original transfers ptr back + assembly { + transfers := sub(transfers, add(32, mul(34, totalNumDeposits))) + } + + // Do a normal deposit per token + for(uint i = 0; i < numDistinctTokens; i++) { + if (tokens[i].token == address(0)) { + require(tokens[i].amount == msg.value || from == address(this), "INVALID_ETH_DEPOSIT"); + } + _deposit(from, tokens[i].token, uint96(tokens[i].amount)); + } + + // Store the transfers so they can be processed later + _storeTransfers(transfers, from); } - function _processCalls( - Context memory ctx, - BridgeOperations memory operations, - bytes memory txsData + function _processTransactions(Context memory ctx) + internal + { + // Get the calldata structs directly from the encoded calldata bytes data + TransferBatch[] calldata transferBatches; + ConnectorCalls[] calldata connectorCalls; + TokenData[] calldata tokens; + uint tokensOffset; + assembly { + let offsetToCallbackData := add(68, calldataload(36)) + // transferBatches + transferBatches.offset := add(add(offsetToCallbackData, 32), calldataload(offsetToCallbackData)) + transferBatches.length := calldataload(sub(transferBatches.offset, 32)) + + // connectorCalls + connectorCalls.offset := add(add(offsetToCallbackData, 32), calldataload(add(offsetToCallbackData, 32))) + connectorCalls.length := calldataload(sub(connectorCalls.offset, 32)) + + // tokens + tokens.offset := add(add(offsetToCallbackData, 32), calldataload(add(offsetToCallbackData, 64))) + tokens.length := calldataload(sub(tokens.offset, 32)) + tokensOffset := sub(tokens.offset, 32) + } + ctx.tokensOffset = tokensOffset; + ctx.tokens = tokens; + + _processTransferBatches(ctx, transferBatches); + _processBridgeCalls(ctx, connectorCalls); + } + + function _processTransferBatches( + Context memory ctx, + TransferBatch[] calldata batches ) internal { - TokenData[] memory tokens = operations.tokens; + for (uint o = 0; o < batches.length; o++) { + _processTransferBatch( + ctx, + batches[o] + ); + } + } - uint[] memory withdrawalAmounts = new uint[](tokens.length); - for (uint i = 0; i < tokens.length; i++) { - withdrawalAmounts[i] = tokens[i].amount; + function _processTransferBatch( + Context memory ctx, + TransferBatch calldata batch + ) + internal + { + uint96[] memory amounts = batch.amounts; + + // Verify transfers + bytes memory transfers = new bytes(amounts.length * 34); + assembly { + transfers := add(transfers, 32) } - // Calls - TransferTransaction.Transfer memory transfer; - SignatureVerificationTransaction.SignatureVerification memory verification; - HashData memory hashData; - for (uint c = 0; c < operations.connectorCalls.length; c++) { + for (uint i = 0; i < amounts.length; i++) { + uint targetAmount = amounts[i]; - ConnectorCalls memory connectorCall = operations.connectorCalls[c]; + (uint packedData, address to, ) = readTransfer(ctx); + uint tokenID = (packedData >> 88) & 0xffff; + uint amount = (packedData >> 64) & 0xffffff; + uint fee = (packedData >> 32) & 0xffff; + // Decode floats + amount = (amount & 524287) * (10 ** (amount >> 19)); + fee = (fee & 2047) * (10 ** (fee >> 11)); - // Verify token data - require(connectorCall.tokens.length == tokens.length, "INVALID_TOKEN_DATA"); - for (uint i = 0; i < tokens.length; i++) { - require(tokens[i].token == connectorCall.tokens[i].token, "INVALID_CONNECTOR_TOKEN_DATA"); - tokens[i].amount = tokens[i].amount.sub(connectorCall.tokens[i].amount); + // Verify the transaction data + require( + // txType == ExchangeData.TransactionType.TRANSFER && + // transfer.type == 1 && + // transfer.fromAccountID == ctx.accountID && + // transfer.toAccountID == UNKNOWN && + packedData & 0xffffffffffff0000000000000000000000000000000000 == + (uint(ExchangeData.TransactionType.TRANSFER) << 176) | (1 << 168) | (uint(accountID) << 136) && + /*feeTokenID*/(packedData >> 48) & 0xffff == tokenID && + fee <= (amount * MAX_FEE_BIPS / 10000) && + (100000 - 8) * targetAmount <= 100000 * amount && amount <= targetAmount, + "INVALID_BRIDGE_TRANSFER_TX_DATA" + ); + + // Pack the transfer data to compare against batch deposit hash + assembly { + mstore(add(transfers, 2), tokenID) + mstore( transfers , or(shl(96, to), targetAmount)) + transfers := add(transfers, 34) } + } - // Call the connector - _connectorCall(connectorCall); + // Get the original transfers ptr back + assembly { + transfers := sub(transfers, add(32, mul(34, mload(amounts)))) + } + // Check if these transfers can be processed + bytes32 hash = _hashTransferBatch(transfers); + require(!_arePendingTransfersTooOld(batch.batchID, hash), "TRANSFERS_TOO_OLD"); + + // Mark transfers as completed + delete pendingTransfers[batch.batchID][hash]; + } + + function _processBridgeCalls( + Context memory ctx, + ConnectorCalls[] calldata connectorCalls + ) + internal + { + // Total amounts transferred to the bridge + uint[] memory totalAmounts = new uint[](ctx.tokens.length); + + // All resulting deposits from all bridge calls + BridgeTransfer[][] memory deposits = new BridgeTransfer[][](connectorCalls.length); + + // Verify and execute bridge calls + for (uint c = 0; c < connectorCalls.length; c++) { + ConnectorCalls calldata connectorCall = connectorCalls[c]; // Verify the transactions - for (uint g = 0; g < connectorCall.groups.length; g++) { - ConnectorGroup memory group = connectorCall.groups[g]; - for (uint i = 0; i < group.calls.length; i++) { - TransferTransaction.readTx(txsData, ctx.txIdx++ * ExchangeData.TX_DATA_AVAILABILITY_SIZE, transfer); - SignatureVerificationTransaction.readTx(txsData, ctx.txIdx++ * ExchangeData.TX_DATA_AVAILABILITY_SIZE, verification); - - BridgeCall memory call = group.calls[i]; - - // Verify the transaction data - require( - transfer.toAccountID == ctx.accountID && - transfer.to == address(this) && - transfer.fee <= call.maxFee && - call.validUntil >= block.timestamp, - "INVALID_BRIDGE_CALL_TRANSFER" - ); - - // Verify that the transaction was approved with an L2 signature - hashData.connector = connectorCall.connector; - hashData.groupData = group.groupData; - hashData.transfer = transfer; - hashData.call = call; - bytes32 txHash = _hashTx( - ctx.domainSeparator, - hashData - ); - require( - verification.owner == transfer.from && - verification.data == uint(txHash) >> 3, - "INVALID_OFFCHAIN_L2_APPROVAL" - ); - - connectorCall.totalMinGas = connectorCall.totalMinGas.sub(call.minGas); - - for (uint t = 0; t < tokens.length; t++) { - if (transfer.tokenID == tokens[t].tokenID) { - connectorCall.tokens[t].amount = connectorCall.tokens[t].amount.sub(transfer.amount); - } - } + _processConnectorCall( + ctx, + connectorCall, + totalAmounts + ); + + // Call the connector + deposits[c] = _connectorCall( + ctx, + connectorCall, + c, + connectorCalls + ); + } + + // Verify withdrawals + _processWithdrawals(ctx, totalAmounts); + + // Do all resulting transfers back from the bridge to the users + _batchDeposit(address(this), deposits); + } + + function _processConnectorCall( + Context memory ctx, + ConnectorCalls calldata connectorCall, + uint[] memory totalAmounts + ) + internal + view + { + CallTransfer memory transfer; + uint totalMinGas = 0; + for (uint g = 0; g < connectorCall.groups.length; g++) { + ConnectorGroup calldata group = connectorCall.groups[g]; + for (uint i = 0; i < group.calls.length; i++) { + BridgeCall calldata bridgeCall = group.calls[i]; + + // packedData: txType (1) | type (1) | fromAccountID (4) | toAccountID (4) | tokenID (2) | amount (3) | feeTokenID (2) | fee (2) | storageID (4) + (uint packedData, , ) = readTransfer(ctx); + transfer.fromAccountID = (packedData >> 136) & 0xffffffff; + transfer.tokenID = (packedData >> 88) & 0xffff; + transfer.amount = (packedData >> 64) & 0xffffff; + transfer.feeTokenID = (packedData >> 48) & 0xffff; + transfer.fee = (packedData >> 32) & 0xffff; + transfer.storageID = (packedData ) & 0xffffffff; + + transfer.amount = (transfer.amount & 524287) * (10 ** (transfer.amount >> 19)); + transfer.fee = (transfer.fee & 2047) * (10 ** (transfer.fee >> 11)); + + // Verify that the transaction was approved with an L2 signature + bytes32 txHash = _hashTx( + transfer, + bridgeCall.maxFee, + bridgeCall.validUntil, + bridgeCall.minGas, + connectorCall.connector, + group.groupData, + bridgeCall.userData + ); + verifySignatureL2(ctx, bridgeCall.owner, transfer.fromAccountID, txHash); + + uint t = 0; + while (t < ctx.tokens.length && transfer.tokenID != ctx.tokens[t].tokenID) { + t++; } - } + require(t < ctx.tokens.length, "INVALID_INPUT_TOKENS"); + totalAmounts[t] += transfer.amount; - // Make sure token amounts passed in match - for (uint i = 0; i < tokens.length; i++) { - require(connectorCall.tokens[i].amount == 0, "INVALID_BRIDGE_DATA"); - } + // Verify the transaction data + require( + // txType == ExchangeData.TransactionType.TRANSFER && + // transfer.type == 1 && + // transfer.fromAccountID == UNKNOWN && + // transfer.toAccountID == ctx.accountID && + packedData & 0xffff00000000ffffffff00000000000000000000000000 == + (uint(ExchangeData.TransactionType.TRANSFER) << 176) | (1 << 168) | (uint(accountID) << 104) && + transfer.fee <= bridgeCall.maxFee && + bridgeCall.validUntil == 0 || block.timestamp < bridgeCall.validUntil && + bridgeCall.token == ctx.tokens[t].token && + bridgeCall.amount == transfer.amount, + "INVALID_BRIDGE_CALL_TRANSFER" + ); - // Make sure the gas passed to the connector is at least the sum of all call gas min amounts. - // So calls basically "buy" a part of the total gas needed to do the batched call, - // while IBridgeConnector.getMinGasLimit() makes sure the total gas limit makes sense for the - // amount of work submitted. - require(connectorCall.totalMinGas == 0, "INVALID_TOTAL_MIN_GAS"); + totalMinGas = totalMinGas.add(bridgeCall.minGas); + } } + // Make sure the gas passed to the connector is at least the sum of all call gas min amounts. + // So calls basically "buy" a part of the total gas needed to do the batched call, + // while IBridgeConnector.getMinGasLimit() makes sure the total gas limit makes sense for the + // amount of work submitted. + require(connectorCall.gasLimit >= totalMinGas, "INVALID_TOTAL_MIN_GAS"); + } + + function _processWithdrawals( + Context memory ctx, + uint[] memory totalAmounts + ) + internal + { // Verify the withdrawals - WithdrawTransaction.Withdrawal memory withdrawal; - for (uint i = 0; i < tokens.length; i++) { + for (uint i = 0; i < ctx.tokens.length; i++) { + TokenData memory token = ctx.tokens[i]; // Verify token data require( - _getTokenID(tokens[i].token) == tokens[i].tokenID, + _getTokenID(token.token) == token.tokenID && + token.amount == totalAmounts[i], "INVALID_TOKEN_DATA" ); - // Verify withdrawal data - WithdrawTransaction.readTx(txsData, ctx.txIdx++ * ExchangeData.TX_DATA_AVAILABILITY_SIZE, withdrawal); bytes20 onchainDataHash = WithdrawTransaction.hashOnchainData( 0, // Withdrawal needs to succeed no matter the gas coast address(this), // Withdraw to this contract first new bytes(0) ); + + // Verify withdrawal data + uint txsDataPtr = ctx.txsDataPtr - 21; + uint header; + uint packedData; + bytes20 dataHash; + assembly { + header := calldataload( txsDataPtr ) + packedData := calldataload(add(txsDataPtr, 42)) + dataHash := and(calldataload(add(txsDataPtr, 78)), 0xffffffffffffffffffffffffffffffffffffffff000000000000000000000000) + } require( - withdrawal.onchainDataHash == onchainDataHash && - withdrawal.tokenID == tokens[i].tokenID && - withdrawal.amount == withdrawalAmounts[i] && - withdrawal.fee == 0, + // txType == ExchangeData.TransactionType.WITHDRAWAL && + // withdrawal.type == 1 && + header & 0xffff == (uint(ExchangeData.TransactionType.WITHDRAWAL) << 8) | 1 && + // withdrawal.tokenID == token.tokenID && + // withdrawal.amount == token.amount && + // withdrawal.fee == 0, + packedData & 0xffffffffffffffffffffffffffff0000ffff == (uint(token.tokenID) << 128) | (token.amount << 32) && + onchainDataHash == dataHash, "INVALID_BRIDGE_WITHDRAWAL_TX_DATA" ); - // Verify all tokens withdrawn were actually transferred into the Bridge - require(tokens[i].amount == 0, "INVALID_BRIDGE_TOKEN_DATA"); + ctx.txsDataPtr += ExchangeData.TX_DATA_AVAILABILITY_SIZE; } } - function _storeTransfers(InternalBridgeTransfer[] memory transfers) + function _storeTransfers( + bytes memory transfers, + address from + ) internal { uint batchID = batchIDGenerator++; // Store transfers to distribute at a later time - bytes32 hash = _hashTransfers(batchID, transfers); - require(pendingTransfers[hash] == 0, "DUPLICATE_BATCH"); - pendingTransfers[hash] = block.timestamp; + bytes32 hash = _hashTransferBatch(transfers); + require(pendingTransfers[batchID][hash] == 0, "DUPLICATE_BATCH"); + pendingTransfers[batchID][hash] = block.timestamp; // Log transfers to do - emit Transfers(batchID, transfers); + emit Transfers(batchID, transfers, from); } function _deposit( @@ -407,104 +587,67 @@ contract Bridge is Claimable ) internal { - if(amount > 0) { - // Do the token transfer directly to the exchange - uint ethValue = (token == address(0)) ? amount : 0; - exchange.deposit{value: ethValue}(from, address(this), token, amount, new bytes(0)); + if (amount == 0) { + return; + } + + if (from == address(this) && token != address(0)) { + ERC20(token).approve(address(depositContract), amount); } + // Do the token transfer directly to the exchange + uint ethValue = (token == address(0)) ? amount : 0; + exchange.deposit{value: ethValue}(from, address(this), token, amount, new bytes(0)); } - function _connectorCall(ConnectorCalls memory connectorCalls) + function _connectorCall( + Context memory ctx, + ConnectorCalls calldata connectorCalls, + uint n, + ConnectorCalls[] calldata allConnectorCalls + ) internal + returns (BridgeTransfer[] memory transfers) { + require(connectorCalls.connector != address(this), "INVALID_CONNECTOR"); + require(trustedConnectors[connectorCalls.connector], "ONLY_TRUSTED_CONNECTORS_SUPPORTED"); + // Check if the minimum amount of gas required is achieved - try IBridgeConnector(connectorCalls.connector).getMinGasLimit{gas: GAS_LIMIT_CHECK_GAS_LIMIT}(connectorCalls) returns (uint minGasLimit) { - require(connectorCalls.gasLimit >= minGasLimit, "GAS_LIMIT_TOO_LOW"); - } catch { + bytes memory txData = _getConnectorCallData(ctx, IBridgeConnector.getMinGasLimit.selector, allConnectorCalls, n); + (bool success, bytes memory returnData) = connectorCalls.connector.fastCall(GAS_LIMIT_CHECK_GAS_LIMIT, 0, txData); + if (success) { + require(connectorCalls.gasLimit >= abi.decode(returnData, (uint)), "GAS_LIMIT_TOO_LOW"); + } else { // If the call failed for some reason just continue. } - // Do the call - bool success; - try Bridge(this)._executeConnectorCall(connectorCalls) { - success = true; - emit BridgeCallSuccess(connectorCalls.connector); - } catch Error(string memory reason) { - success = false; - emit BridgeCallFailed(connectorCalls.connector, reason); - } catch { - success = false; - emit BridgeCallFailed(connectorCalls.connector, "unknown"); - } + // Execute the logic using a delegate so no extra transfers are needed + txData = _getConnectorCallData(ctx,IBridgeConnector.processCalls.selector, allConnectorCalls, n); + (success, returnData) = connectorCalls.connector.fastDelegatecall(connectorCalls.gasLimit, txData); - // If the call failed return funds to all users - if (!success) { + if (success) { + emit ConnectorCallResult(connectorCalls.connector, true, ""); + transfers = abi.decode(returnData, (BridgeTransfer[])); + } else { + // If the call failed return funds to all users + uint totalNumCalls = 0; for (uint g = 0; g < connectorCalls.groups.length; g++) { - InternalBridgeTransfer[] memory transfers = new InternalBridgeTransfer[](connectorCalls.groups[g].calls.length); - for (uint i = 0; i < connectorCalls.groups[g].calls.length; i++) { - transfers[i] = InternalBridgeTransfer({ - owner: connectorCalls.groups[g].calls[i].owner, - tokenID: _getTokenID(connectorCalls.groups[g].calls[i].token), - amount: connectorCalls.groups[g].calls[i].amount - }); - } - _storeTransfers(transfers); - } - } - } - - function _executeConnectorCall(ConnectorCalls calldata connectorCalls) - external - { - require(msg.sender == address(this), "UNAUTHORIZED"); - require(connectorCalls.connector != address(this), "INVALID_CONNECTOR"); - - bool trusted = trustedConnectors[connectorCalls.connector]; - - if (trusted) { - // Execute the logic using a delegate so no extra transfers are needed - - // Do the delegate call - /*bytes memory txData = abi.encodeWithSelector( - IBridgeConnector.processCalls.selector, - connectorCalls - );*/ - //(bool success, bytes memory returnData) = connectorCalls.connector.delegatecall(txData); - - // Manually copy data from the calldata and pass it into the connector - uint txDataSize; - assembly { - txDataSize := calldatasize() + totalNumCalls += connectorCalls.groups[g].calls.length; } - bytes memory txData = new bytes(txDataSize); - bytes4 selector = IBridgeConnector.processCalls.selector; - assembly { - mstore(add(txData, 32), selector) - calldatacopy(add(txData, 36), 4, sub(txDataSize, 4)) - } - (bool success, bytes memory returnData) = connectorCalls.connector.fastDelegatecall(gasleft(), txData); - if (!success) { - assembly { revert(add(returnData, 32), mload(returnData)) } - } - // TODO: maybe return transfers here to batch all of them together in a single `deposit` call across all trusted connectors. - } else { - // Transfer funds to the external contract with a real call, so the connector doesn't have to be trusted at all. - - // Transfer funds to the connector contract - uint ethValue = 0; - for (uint i = 0; i < connectorCalls.tokens.length; i++) { - TokenData memory tokenData = connectorCalls.tokens[i]; - if (tokenData.amount > 0) { - if (tokenData.token != address(0)) { - tokenData.token.safeTransferAndVerify(connectorCalls.connector, tokenData.amount); - } else { - ethValue = ethValue.add(tokenData.amount); - } + transfers = new BridgeTransfer[](totalNumCalls); + uint txIdx = 0; + for (uint g = 0; g < connectorCalls.groups.length; g++) { + ConnectorGroup memory group = connectorCalls.groups[g]; + for (uint i = 0; i < group.calls.length; i++) { + BridgeCall memory bridgeCall = group.calls[i]; + transfers[txIdx++] = BridgeTransfer({ + owner: bridgeCall.owner, + token: bridgeCall.token, + amount: bridgeCall.amount + }); } } - - // Do the call - IBridgeConnector(connectorCalls.connector).processCalls{value: ethValue, gas: connectorCalls.gasLimit}(connectorCalls); + assert(txIdx == totalNumCalls); + emit ConnectorCallResult(connectorCalls.connector, false, returnData); } } @@ -540,75 +683,169 @@ contract Bridge is Claimable } } - function _isAlmostEqualAmount( - uint96 amount, - uint96 targetAmount - ) - internal - pure - returns (bool) - { - if (targetAmount == 0) { - return amount == 0; - } else { - // Max rounding error for a float24 is 2/100000 - // But relayer may use float rounding multiple times - // so the range is expanded to [100000 - 8, 100000 + 0], - // always rounding down. - uint ratio = (uint(amount) * 100000) / uint(targetAmount); - return (100000 - 8) <= ratio && ratio <= (100000 + 0); - } - } - - function _hashTransfers( - uint batchID, - InternalBridgeTransfer[] memory transfers + function _hashTransferBatch( + bytes memory transfers ) internal pure returns (bytes32) { - return keccak256(abi.encode(batchID, transfers)); + return keccak256(transfers); } - function _arePendingTransfersTooOld(bytes32 hash) + function _arePendingTransfersTooOld(uint batchID, bytes32 hash) internal view returns (bool) { - uint timestamp = pendingTransfers[hash]; + uint timestamp = pendingTransfers[batchID][hash]; require(timestamp != 0, "UNKNOWN_TRANSFERS"); - return block.timestamp > timestamp + MAX_AGE_PENDING_TRANSFERS; + return block.timestamp > timestamp + MAX_AGE_PENDING_TRANSFER; } function _hashTx( - bytes32 _DOMAIN_SEPARATOR, - HashData memory hashData + CallTransfer memory transfer, + uint maxFee, + uint validUntil, + uint minGas, + address connector, + bytes memory groupData, + bytes memory userData ) internal - pure - returns (bytes32) + view + returns (bytes32 h) { - return EIP712.hashPacked( + bytes32 _DOMAIN_SEPARATOR = DOMAIN_SEPARATOR; + uint tokenID = transfer.tokenID; + uint amount = transfer.amount; + uint feeTokenID = transfer.feeTokenID; + uint storageID = transfer.storageID; + + /*return EIP712.hashPacked( _DOMAIN_SEPARATOR, keccak256( abi.encode( BRIDGE_CALL_TYPEHASH, - hashData.transfer.from, - hashData.transfer.to, - hashData.transfer.tokenID, - hashData.transfer.amount, - hashData.transfer.feeTokenID, - hashData.call.maxFee, - hashData.transfer.storageID, - hashData.call.minGas, - hashData.connector, - keccak256(hashData.groupData), - keccak256(hashData.call.userData), - hashData.call.validUntil + tokenID, + amount, + feeTokenID, + storageID, + minGas, + connector, + keccak256(groupData), + keccak256(userData) ) ) + );*/ + bytes32 typeHash = BRIDGE_CALL_TYPEHASH; + assembly { + let data := mload(0x40) + mstore( data , typeHash) + mstore(add(data, 32), tokenID) + mstore(add(data, 64), amount) + mstore(add(data, 96), feeTokenID) + mstore(add(data, 128), maxFee) + mstore(add(data, 160), validUntil) + mstore(add(data, 192), storageID) + mstore(add(data, 224), minGas) + mstore(add(data, 256), connector) + mstore(add(data, 288), keccak256(add(groupData, 32), mload(groupData))) + mstore(add(data, 320), keccak256(add(userData , 32), mload(userData))) + let p := keccak256(data, 352) + mstore(data, "\x19\x01") + mstore(add(data, 2), _DOMAIN_SEPARATOR) + mstore(add(data, 34), p) + h := keccak256(data, 66) + } + } + + function _getConnectorCallData( + Context memory ctx, + bytes4 selector, + ConnectorCalls[] calldata calls, + uint n + ) + internal + pure + returns (bytes memory) + { + // Position in the calldata to start copying + uint offsetToGroups; + ConnectorGroup[] calldata groups = calls[n].groups; + assembly { + offsetToGroups := sub(groups.offset, 32) + } + + // Amount of bytes that need to be copied. + // Found by either using the offset to the next connector call or (for the last call) + // using the offset of the data after all calls (which is the tokens array). + uint txDataSize = 0; + if (n + 1 < calls.length) { + uint offsetToCall; + uint offsetToNextCall; + assembly { + offsetToCall := calldataload(add(calls.offset, mul(add(n, 0), 32))) + offsetToNextCall := calldataload(add(calls.offset, mul(add(n, 1), 32))) + } + txDataSize = offsetToNextCall.sub(offsetToCall); + } else { + txDataSize = ctx.tokensOffset.sub(offsetToGroups); + } + + // Create the calldata for the call + bytes memory txData = new bytes(4 + 32 + txDataSize); + assembly { + mstore(add(txData, 32), selector) + mstore(add(txData, 36), 0x20) + calldatacopy(add(txData, 68), offsetToGroups, txDataSize) + } + + return txData; + } + + function readTransfer(Context memory ctx) + internal + pure + returns (uint packedData, address to, address from) + { + uint txsDataPtr = ctx.txsDataPtr; + // packedData: txType (1) | type (1) | fromAccountID (4) | toAccountID (4) | tokenID (2) | amount (3) | feeTokenID (2) | fee (2) | storageID (4) + assembly { + packedData := calldataload(txsDataPtr) + to := and(calldataload(add(txsDataPtr, 20)), 0xffffffffffffffffffffffffffffffffffffffff) + from := and(calldataload(add(txsDataPtr, 40)), 0xffffffffffffffffffffffffffffffffffffffff) + } + ctx.txsDataPtr += ExchangeData.TX_DATA_AVAILABILITY_SIZE; + } + + function verifySignatureL2( + Context memory ctx, + address owner, + uint _accountID, + bytes32 txHash + ) + internal + pure + { + // Read the signature verification transaction + uint txsDataPtr = ctx.txsDataPtr + 2; + uint packedData; + uint data; + assembly { + packedData := calldataload(txsDataPtr) + data := calldataload(add(txsDataPtr, 32)) + } + + // Verify that the hash was signed on L2 + require( + packedData & 0xffffffffffffffffffffffffffffffffffffffffffffffffff == + (uint(ExchangeData.TransactionType.SIGNATURE_VERIFICATION) << 192) | ((uint(owner) & 0x00ffffffffffffffffffffffffffffffffffffffff) << 32) | _accountID && + data == uint(txHash) >> 3, + "INVALID_OFFCHAIN_L2_APPROVAL" ); + + ctx.txsDataPtr += ExchangeData.TX_DATA_AVAILABILITY_SIZE; } function encode(BridgeOperations calldata operations) diff --git a/packages/loopring_v3/contracts/aux/bridge/BridgeData.sol b/packages/loopring_v3/contracts/aux/bridge/BridgeData.sol index 1cdf32697..648f3fa08 100644 --- a/packages/loopring_v3/contracts/aux/bridge/BridgeData.sol +++ b/packages/loopring_v3/contracts/aux/bridge/BridgeData.sol @@ -45,15 +45,13 @@ struct ConnectorCalls { address connector; uint gasLimit; - uint totalMinGas; ConnectorGroup[] groups; - TokenData[] tokens; } struct TransferBatch { - uint batchID; - InternalBridgeTransfer[] transfers; + uint batchID; + uint96[] amounts; } struct BridgeOperations diff --git a/packages/loopring_v3/contracts/aux/bridge/IBridgeConnector.sol b/packages/loopring_v3/contracts/aux/bridge/IBridgeConnector.sol index 0d060dd55..d12e05a8a 100644 --- a/packages/loopring_v3/contracts/aux/bridge/IBridgeConnector.sol +++ b/packages/loopring_v3/contracts/aux/bridge/IBridgeConnector.sol @@ -8,11 +8,12 @@ import "./BridgeData.sol"; interface IBridgeConnector { - function processCalls(ConnectorCalls calldata connectorCalls) + function processCalls(ConnectorGroup[] calldata groups) external - payable; + payable + returns (BridgeTransfer[] memory); - function getMinGasLimit(ConnectorCalls calldata connectorCalls) + function getMinGasLimit(ConnectorGroup[] calldata groups) external pure returns (uint); diff --git a/packages/loopring_v3/contracts/aux/transactions/TransactionReader.sol b/packages/loopring_v3/contracts/aux/transactions/TransactionReader.sol index 35744f504..5eb50d1af 100644 --- a/packages/loopring_v3/contracts/aux/transactions/TransactionReader.sol +++ b/packages/loopring_v3/contracts/aux/transactions/TransactionReader.sol @@ -104,12 +104,44 @@ library TransactionReader { internal pure { - bytes memory txData = txsData; + require(txIdx + numTransactions <= _block.blockSize, "INVALID_TX_RANGE"); + uint TX_DATA_AVAILABILITY_SIZE = ExchangeData.TX_DATA_AVAILABILITY_SIZE; + uint TX_DATA_AVAILABILITY_SIZE_PART_1 = ExchangeData.TX_DATA_AVAILABILITY_SIZE_PART_1; + uint TX_DATA_AVAILABILITY_SIZE_PART_2 = ExchangeData.TX_DATA_AVAILABILITY_SIZE_PART_2; + + // Part 1 + uint offset = BlockReader.OFFSET_TO_TRANSACTIONS + + txIdx * TX_DATA_AVAILABILITY_SIZE_PART_1; + bytes memory data1 = _block.data; + assembly { + data1 := add(data1, add(offset, 32)) + } + + // Part 2 + offset = BlockReader.OFFSET_TO_TRANSACTIONS + + _block.blockSize * TX_DATA_AVAILABILITY_SIZE_PART_1 + + txIdx * TX_DATA_AVAILABILITY_SIZE_PART_2; + bytes memory data2 = _block.data; + assembly { + data2 := add(data2, add(offset, 32)) + } + + // Add fixed offset once + assembly { + txsData := add(txsData, 32) + } + + // Read the transactions for (uint i = 0; i < numTransactions; i++) { - _block.data.readTransactionData(txIdx + i, _block.blockSize, txData); assembly { - txData := add(txData, TX_DATA_AVAILABILITY_SIZE) + mstore( txsData , mload( data1 )) + mstore(add(txsData, 29), mload( data2 )) + mstore(add(txsData, 36), mload(add(data2, 7))) + + txsData := add(txsData, TX_DATA_AVAILABILITY_SIZE) + data1 := add(data1 , TX_DATA_AVAILABILITY_SIZE_PART_1) + data2 := add(data2 , TX_DATA_AVAILABILITY_SIZE_PART_2) } } } diff --git a/packages/loopring_v3/contracts/converters/BaseConverter.sol b/packages/loopring_v3/contracts/converters/BaseConverter.sol index a13dd2282..96ce17df0 100644 --- a/packages/loopring_v3/contracts/converters/BaseConverter.sol +++ b/packages/loopring_v3/contracts/converters/BaseConverter.sol @@ -39,7 +39,7 @@ abstract contract BaseConverter is LPERC20, Claimable, Drainable } constructor( - IExchangeV3 _exchange + IExchangeV3 _exchange ) { exchange = _exchange; @@ -88,8 +88,10 @@ abstract contract BaseConverter is LPERC20, Claimable, Drainable emit ConversionFailed("unknown"); } + // Mint pool tokens representing each user's share in the pool, with 1:1 ratio _mint(address(this), amountIn); + // Repay the flash mint used to give user's their share on L2 _repay(address(this), amountIn); } @@ -165,6 +167,7 @@ abstract contract BaseConverter is LPERC20, Claimable, Drainable ); } + // Function to approve tokens so this doesn't have to be done every time the conversion is done function approveTokens() public virtual diff --git a/packages/loopring_v3/contracts/core/iface/ExchangeData.sol b/packages/loopring_v3/contracts/core/iface/ExchangeData.sol index a8f6cd05d..fe63174b8 100644 --- a/packages/loopring_v3/contracts/core/iface/ExchangeData.sol +++ b/packages/loopring_v3/contracts/core/iface/ExchangeData.sol @@ -232,6 +232,11 @@ library ExchangeData // Last time the protocol fee was withdrawn for a specific token mapping (address => uint) protocolFeeLastWithdrawnTime; + // Duplicated loopring address + address loopringAddr; + // AMM fee bips + uint8 ammFeeBips; + // Flash mints mapping (address => uint96) amountFlashMinted; } diff --git a/packages/loopring_v3/contracts/core/impl/ExchangeV3.sol b/packages/loopring_v3/contracts/core/impl/ExchangeV3.sol index 177188e5b..558a9d871 100644 --- a/packages/loopring_v3/contracts/core/impl/ExchangeV3.sol +++ b/packages/loopring_v3/contracts/core/impl/ExchangeV3.sol @@ -42,14 +42,12 @@ contract ExchangeV3 is IExchangeV3, ReentrancyGuard using ExchangeTokens for ExchangeData.State; using ExchangeWithdrawals for ExchangeData.State; - ExchangeData.State public state; - address public loopringAddr; - uint8 private ammFeeBips = 20; + ExchangeData.State private state; modifier onlyWhenUninitialized() { require( - loopringAddr == address(0) && state.merkleRoot == bytes32(0), + state.loopringAddr == address(0) && state.merkleRoot == bytes32(0), "INITIALIZED" ); _; @@ -93,7 +91,8 @@ contract ExchangeV3 is IExchangeV3, ReentrancyGuard { require(address(0) != _owner, "ZERO_ADDRESS"); owner = _owner; - loopringAddr = _loopring; + state.loopringAddr = _loopring; + state.ammFeeBips = 20; state.initializeGenesisBlock( _loopring, @@ -729,14 +728,15 @@ contract ExchangeV3 is IExchangeV3, ReentrancyGuard onlyOwner { require(_feeBips <= 200, "INVALID_VALUE"); - ammFeeBips = _feeBips; + state.ammFeeBips = _feeBips; } function getAmmFeeBips() external override view - returns (uint8) { - return ammFeeBips; + returns (uint8) + { + return state.ammFeeBips; } } diff --git a/packages/loopring_v3/contracts/core/impl/libexchange/ExchangeBlocks.sol b/packages/loopring_v3/contracts/core/impl/libexchange/ExchangeBlocks.sol index 3d555e044..eeaffbe91 100644 --- a/packages/loopring_v3/contracts/core/impl/libexchange/ExchangeBlocks.sol +++ b/packages/loopring_v3/contracts/core/impl/libexchange/ExchangeBlocks.sol @@ -195,17 +195,19 @@ library ExchangeBlocks private { if (header.numConditionalTransactions > 0) { - // Cache the domain seperator to save on SLOADs each time it is accessed. + // Cache the domain separator to save on SLOADs each time it is accessed. ExchangeData.BlockContext memory ctx = ExchangeData.BlockContext({ DOMAIN_SEPARATOR: S.DOMAIN_SEPARATOR, timestamp: header.timestamp }); ExchangeData.AuxiliaryData[] memory block_auxiliaryData; + { bytes memory blockAuxData = _block.auxiliaryData; assembly { block_auxiliaryData := add(blockAuxData, 64) } + } require( block_auxiliaryData.length == header.numConditionalTransactions, @@ -215,20 +217,23 @@ library ExchangeBlocks // Run over all conditional transactions uint minTxIndex = 0; bytes memory txData = new bytes(ExchangeData.TX_DATA_AVAILABILITY_SIZE); + + uint txIndex; + bool approved; + bytes memory auxData; + ExchangeData.TransactionType txType; + uint offset; for (uint i = 0; i < block_auxiliaryData.length; i++) { // Load the data from auxiliaryData, which is still encoded as calldata - uint txIndex; - bool approved; - bytes memory auxData; assembly { // Offset to block_auxiliaryData[i] - let auxOffset := mload(add(block_auxiliaryData, add(32, mul(32, i)))) + offset := mload(add(block_auxiliaryData, add(32, mul(32, i)))) // Load `txIndex` (pos 0) and `approved` (pos 1) in block_auxiliaryData[i] - txIndex := mload(add(add(32, block_auxiliaryData), auxOffset)) - approved := mload(add(add(64, block_auxiliaryData), auxOffset)) + txIndex := mload(add(add(32, block_auxiliaryData), offset)) + approved := mload(add(add(64, block_auxiliaryData), offset)) // Load `data` (pos 2) - let auxDataOffset := mload(add(add(96, block_auxiliaryData), auxOffset)) - auxData := add(add(32, block_auxiliaryData), add(auxOffset, auxDataOffset)) + offset := add(offset, mload(add(add(96, block_auxiliaryData), offset))) + auxData := add(add(32, block_auxiliaryData), offset) } // Each conditional transaction needs to be processed from left to right @@ -236,14 +241,7 @@ library ExchangeBlocks minTxIndex = txIndex + 1; - // Get the transaction data - _block.data.readTransactionData(txIndex, _block.blockSize, txData); - - // Process the transaction - ExchangeData.TransactionType txType = ExchangeData.TransactionType( - txData.toUint8(0) - ); - uint txDataOffset = 0; + txType = _block.data.readTransactionType(txIndex); if (approved && txType != ExchangeData.TransactionType.WITHDRAWAL && @@ -251,12 +249,15 @@ library ExchangeBlocks continue; } + // Get the transaction data + _block.data.readTransactionData(txIndex, _block.blockSize, txData); + if (txType == ExchangeData.TransactionType.DEPOSIT) { DepositTransaction.process( S, ctx, txData, - txDataOffset, + 0, auxData ); } else if (txType == ExchangeData.TransactionType.WITHDRAWAL) { @@ -264,7 +265,7 @@ library ExchangeBlocks S, ctx, txData, - txDataOffset, + 0, auxData, approved ); @@ -273,7 +274,7 @@ library ExchangeBlocks S, ctx, txData, - txDataOffset, + 0, auxData ); } else if (txType == ExchangeData.TransactionType.ACCOUNT_UPDATE) { @@ -281,7 +282,7 @@ library ExchangeBlocks S, ctx, txData, - txDataOffset, + 0, auxData ); } else if (txType == ExchangeData.TransactionType.AMM_UPDATE) { @@ -289,7 +290,7 @@ library ExchangeBlocks S, ctx, txData, - txDataOffset, + 0, auxData ); } else { @@ -300,6 +301,8 @@ library ExchangeBlocks revert("UNSUPPORTED_TX_TYPE"); } } + + require(minTxIndex <= _block.blockSize, "AUXILIARYDATA_INVALID_ORDER"); } } diff --git a/packages/loopring_v3/contracts/core/impl/libexchange/ExchangeDeposits.sol b/packages/loopring_v3/contracts/core/impl/libexchange/ExchangeDeposits.sol index 89e2fe083..eb7376f7b 100644 --- a/packages/loopring_v3/contracts/core/impl/libexchange/ExchangeDeposits.sol +++ b/packages/loopring_v3/contracts/core/impl/libexchange/ExchangeDeposits.sol @@ -85,6 +85,9 @@ library ExchangeDeposits ) public { + // Make sure the token is registered + /*uint16 tokenID = */S.getTokenID(tokenAddress); + // Transfer the tokens to this contract uint96 amountDeposited = S.depositContract.deposit{value: msg.value}( from, @@ -92,8 +95,9 @@ library ExchangeDeposits amount, extraData ); + require(amountDeposited > 0, "INVALID_REPAY_AMOUNT"); - // Paid back + // Pay back S.amountFlashMinted[tokenAddress] = S.amountFlashMinted[tokenAddress].sub(amountDeposited); } } diff --git a/packages/loopring_v3/contracts/core/impl/libtransactions/BlockReader.sol b/packages/loopring_v3/contracts/core/impl/libtransactions/BlockReader.sol index bb3aa1671..9a84b478d 100644 --- a/packages/loopring_v3/contracts/core/impl/libtransactions/BlockReader.sol +++ b/packages/loopring_v3/contracts/core/impl/libtransactions/BlockReader.sol @@ -82,4 +82,19 @@ library BlockReader { mstore(add(txData, 68 ), mload(add(data, add(txDataOffset, 39)))) } } + + function readTransactionType( + bytes memory data, + uint txIdx + ) + internal + pure + returns (ExchangeData.TransactionType txType) + { + uint txDataOffset = OFFSET_TO_TRANSACTIONS + + txIdx * ExchangeData.TX_DATA_AVAILABILITY_SIZE_PART_1; + assembly { + txType := and(mload(add(data, add(txDataOffset, 1))), 0xff) + } + } } diff --git a/packages/loopring_v3/contracts/core/impl/libtransactions/WithdrawTransaction.sol b/packages/loopring_v3/contracts/core/impl/libtransactions/WithdrawTransaction.sol index 7c9502113..ef214d2d3 100644 --- a/packages/loopring_v3/contracts/core/impl/libtransactions/WithdrawTransaction.sol +++ b/packages/loopring_v3/contracts/core/impl/libtransactions/WithdrawTransaction.sol @@ -110,10 +110,10 @@ library WithdrawTransaction require(ctx.timestamp < withdrawal.validUntil, "WITHDRAWAL_EXPIRED"); require(withdrawal.fee <= withdrawal.maxFee, "WITHDRAWAL_FEE_TOO_HIGH"); - // Check appproval onchain - // Calculate the tx hash - bytes32 txHash = hashTx(ctx.DOMAIN_SEPARATOR, withdrawal); if (!approved) { + // Check appproval onchain + // Calculate the tx hash + bytes32 txHash = hashTx(ctx.DOMAIN_SEPARATOR, withdrawal); // Check onchain authorization S.requireAuthorizedTx(withdrawal.from, auxData.signature, txHash); } diff --git a/packages/loopring_v3/contracts/lib/FloatUtil.sol b/packages/loopring_v3/contracts/lib/FloatUtil.sol index 614fc7824..b2f2d6cd6 100644 --- a/packages/loopring_v3/contracts/lib/FloatUtil.sol +++ b/packages/loopring_v3/contracts/lib/FloatUtil.sol @@ -74,4 +74,36 @@ library FloatUtil require(value < 2**96, "SafeCast: value doesn\'t fit in 96 bits"); return uint96(value); } + + // Decodes a decimal float value that is encoded like `exponent | mantissa`. + // Both exponent and mantissa are in base 10. + // Decoding to an integer is as simple as `mantissa * (10 ** exponent)` + // Will throw when the decoded value overflows an uint96 + /// @param f The float value with 5 bits exponent, 11 bits mantissa + /// @return value The decoded integer value. + function decodeFloat16Unsafe( + uint f + ) + internal + pure + returns (uint) + { + return (f & 2047) * (10 ** (f >> 11)); + } + + // Decodes a decimal float value that is encoded like `exponent | mantissa`. + // Both exponent and mantissa are in base 10. + // Decoding to an integer is as simple as `mantissa * (10 ** exponent)` + // Will throw when the decoded value overflows an uint96 + /// @param f The float value with 5 bits exponent, 19 bits mantissa + /// @return value The decoded integer value. + function decodeFloat24Unsafe( + uint f + ) + internal + pure + returns (uint) + { + return (f & 524287) * (10 ** (f >> 19)); + } } diff --git a/packages/loopring_v3/contracts/test/TestMigrationBridgeConnector.sol b/packages/loopring_v3/contracts/test/TestMigrationBridgeConnector.sol new file mode 100644 index 000000000..58556bd9e --- /dev/null +++ b/packages/loopring_v3/contracts/test/TestMigrationBridgeConnector.sol @@ -0,0 +1,123 @@ +// SPDX-License-Identifier: Apache-2.0 +// Copyright 2017 Loopring Technology Limited. +pragma solidity ^0.7.0; +pragma experimental ABIEncoderV2; + +import "./TestSwapper.sol"; +import "../core/iface/IExchangeV3.sol"; +import "../lib/AddressUtil.sol"; +import "../lib/ERC20.sol"; +import "../lib/ERC20SafeTransfer.sol"; +import "../lib/MathUint.sol"; +import "../thirdparty/SafeCast.sol"; +import "../aux/bridge/IBridge.sol"; +import "../aux/bridge/IBridgeConnector.sol"; + +/// Migrates from Loopring to ... Loopring! +/// @author Brecht Devos - +contract TestMigrationBridgeConnector is IBridgeConnector +{ + using AddressUtil for address payable; + using ERC20SafeTransfer for address; + using MathUint for uint; + using SafeCast for uint; + + struct GroupSettings + { + address token; + } + + struct UserSettings + { + address to; + } + + IExchangeV3 public immutable exchange; + IDepositContract public immutable depositContract; + + IBridge public immutable bridge; + + constructor( + IExchangeV3 _exchange, + IBridge _bridge + ) + { + exchange = _exchange; + depositContract = _exchange.getDepositContract(); + + bridge = _bridge; + } + + function processCalls(ConnectorGroup[] memory groups) + external + payable + override + returns (BridgeTransfer[] memory) + { + uint numTransfers = 0; + for (uint g = 0; g < groups.length; g++) { + numTransfers += groups[g].calls.length; + } + BridgeTransfer[] memory transfers = new BridgeTransfer[](numTransfers); + uint transferIdx = 0; + + // Total ETH to migrate + uint totalAmountETH = 0; + BridgeCall memory bridgeCall; + for (uint g = 0; g < groups.length; g++) { + GroupSettings memory settings = abi.decode(groups[g].groupData, (GroupSettings)); + + BridgeCall[] memory calls = groups[g].calls; + + // Check for each call if the minimum slippage was achieved + uint totalAmount = 0; + for (uint i = 0; i < calls.length; i++) { + bridgeCall = calls[i]; + require(calls[i].token == settings.token, "WRONG_TOKEN_IN_GROUP"); + + address to = bridgeCall.owner; + if(bridgeCall.userData.length == 32) { + UserSettings memory userSettings = abi.decode(bridgeCall.userData, (UserSettings)); + to = userSettings.to; + } + + transfers[transferIdx++] = BridgeTransfer({ + owner: to, + token: bridgeCall.token, + amount: bridgeCall.amount + }); + + totalAmount += bridgeCall.amount; + } + + if (settings.token == address(0)) { + totalAmountETH = totalAmountETH.add(totalAmount); + } else { + uint allowance = ERC20(settings.token).allowance(address(this), address(depositContract)); + ERC20(settings.token).approve(address(depositContract), allowance.add(totalAmount)); + } + } + + // Mass migrate + bridge.batchDeposit{value: totalAmountETH}(transfers); + + return new BridgeTransfer[](0); + } + + function getMinGasLimit(ConnectorGroup[] calldata groups) + external + pure + override + returns (uint gasLimit) + { + gasLimit = 40000; + for (uint g = 0; g < groups.length; g++) { + gasLimit += 75000 + 2500 * groups[g].calls.length; + } + } + + receive() + external + payable + {} +} \ No newline at end of file diff --git a/packages/loopring_v3/contracts/test/TestSwapper.sol b/packages/loopring_v3/contracts/test/TestSwapper.sol index b3564ebd6..97eecf24f 100644 --- a/packages/loopring_v3/contracts/test/TestSwapper.sol +++ b/packages/loopring_v3/contracts/test/TestSwapper.sol @@ -16,12 +16,15 @@ contract TestSwapper using MathUint for uint; uint public immutable rate; + bool public immutable fail; constructor( - uint _rate + uint _rate, + bool _fail ) { rate = _rate; + fail = _fail; } function swap( @@ -33,6 +36,8 @@ contract TestSwapper payable returns (uint amountOut) { + require(!fail, "FAIL_ENABLED"); + if (tokenIn == address(0)) { require(msg.value == amountIn, "INVALID_ETH_DEPOSIT"); } else { diff --git a/packages/loopring_v3/contracts/test/TestSwappperBridgeConnector.sol b/packages/loopring_v3/contracts/test/TestSwappperBridgeConnector.sol index 932027f2f..df3346740 100644 --- a/packages/loopring_v3/contracts/test/TestSwappperBridgeConnector.sol +++ b/packages/loopring_v3/contracts/test/TestSwappperBridgeConnector.sol @@ -33,56 +33,41 @@ contract TestSwappperBridgeConnector is IBridgeConnector uint minAmountOut; } - struct TokenApprovals - { - address token; - uint amount; - } - - IExchangeV3 public immutable exchange; - IDepositContract public immutable depositContract; - - TestSwapper public immutable testSwapper; + TestSwapper public immutable testSwapper; - constructor( - IExchangeV3 _exchange, - TestSwapper _testSwapper - ) + constructor(TestSwapper _testSwapper) { - exchange = _exchange; - depositContract = _exchange.getDepositContract(); - testSwapper = _testSwapper; } - function processCalls(ConnectorCalls calldata connectorCalls) + function processCalls(ConnectorGroup[] memory groups) external payable override + returns (BridgeTransfer[] memory) { uint numTransfers = 0; - for (uint g = 0; g < connectorCalls.groups.length; g++) { - numTransfers += connectorCalls.groups[g].calls.length; + for (uint g = 0; g < groups.length; g++) { + numTransfers += groups[g].calls.length; } BridgeTransfer[] memory transfers = new BridgeTransfer[](numTransfers); uint transferIdx = 0; - // Total ETH to re-deposit - uint ethValueIn = 0; - - for (uint g = 0; g < connectorCalls.groups.length; g++) { - GroupSettings memory settings = abi.decode(connectorCalls.groups[g].groupData, (GroupSettings)); + BridgeCall memory bridgeCall; + for (uint g = 0; g < groups.length; g++) { + GroupSettings memory settings = abi.decode(groups[g].groupData, (GroupSettings)); - BridgeCall[] calldata calls = connectorCalls.groups[g].calls; + BridgeCall[] memory calls = groups[g].calls; bool[] memory valid = new bool[](calls.length); uint numValid = 0; uint amountInExpected = 0; for (uint i = 0; i < calls.length; i++) { - valid[i] = calls[i].token == settings.tokenIn; - if (valid[i]) { - amountInExpected = amountInExpected.add(calls[i].amount); + bridgeCall = calls[i]; + if (bridgeCall.token == settings.tokenIn) { + valid[i] = true; + amountInExpected = amountInExpected + bridgeCall.amount; } } @@ -93,26 +78,27 @@ contract TestSwappperBridgeConnector is IBridgeConnector amountInExpected ); + // Check for each call if the minimum slippage was achieved uint amountIn = 0; uint ammountInInvalid = 0; for (uint i = 0; i < calls.length; i++) { - if(valid[i] && calls[i].userData.length == 32) { - UserSettings memory userSettings = abi.decode(calls[i].userData, (UserSettings)); - uint userAmountOut = uint(calls[i].amount).mul(amountOut) / amountInExpected; + bridgeCall = calls[i]; + if(valid[i] && bridgeCall.userData.length == 32) { + UserSettings memory userSettings = abi.decode(bridgeCall.userData, (UserSettings)); + uint userAmountOut = uint(bridgeCall.amount).mul(amountOut) / amountInExpected; if (userAmountOut < userSettings.minAmountOut) { valid[i] = false; } } if (valid[i]) { - amountIn = amountIn.add(calls[i].amount); + amountIn = amountIn.add(bridgeCall.amount); numValid++; } else { - ammountInInvalid = ammountInInvalid.add(calls[i].amount); + ammountInInvalid = ammountInInvalid.add(bridgeCall.amount); } } // Do the actual swap - { uint ethValueOut = (settings.tokenIn == address(0)) ? amountIn : 0; if (settings.tokenIn != address(0)) { ERC20(settings.tokenIn).approve(address(testSwapper), amountIn); @@ -122,7 +108,6 @@ contract TestSwappperBridgeConnector is IBridgeConnector settings.tokenOut, amountIn ); - } // Create transfers back to the users for (uint i = 0; i < calls.length; i++) { @@ -142,40 +127,21 @@ contract TestSwappperBridgeConnector is IBridgeConnector }); } } - - // Batch deposit - // TODO: more batching - // TODO: maybe use internal list to track allowances (maybe not needed with eip-2929) - // TODO: pre-approve tokens where possible - if (numValid != 0) { - if (settings.tokenOut == address(0)) { - ethValueIn = ethValueIn.add(amountOut); - } else { - uint allowance = ERC20(settings.tokenOut).allowance(address(this), address(depositContract)); - ERC20(settings.tokenOut).approve(address(depositContract), allowance.add(amountOut)); - } - } - if (numValid != calls.length) { - if (settings.tokenIn == address(0)) { - ethValueIn = ethValueIn.add(ammountInInvalid); - } else { - uint allowance = ERC20(settings.tokenIn).allowance(address(this), address(depositContract)); - ERC20(settings.tokenIn).approve(address(depositContract), allowance.add(ammountInInvalid)); - } - } } + assert(transfers.length == transferIdx); - IBridge(msg.sender).batchDeposit{value: ethValueIn}(transfers); + return transfers; } - function getMinGasLimit(ConnectorCalls calldata connectorCalls) + function getMinGasLimit(ConnectorGroup[] calldata groups) external pure override returns (uint gasLimit) { - for (uint g = 0; g < connectorCalls.groups.length; g++) { - gasLimit += 100000 + 2500 * connectorCalls.groups[g].calls.length; + gasLimit = 40000; + for (uint g = 0; g < groups.length; g++) { + gasLimit += 100000 + 2500 * groups[g].calls.length; } } diff --git a/packages/loopring_v3/contracts/thirdparty/BytesUtil.sol b/packages/loopring_v3/contracts/thirdparty/BytesUtil.sol index ad7fef7b4..23eb9598d 100644 --- a/packages/loopring_v3/contracts/thirdparty/BytesUtil.sol +++ b/packages/loopring_v3/contracts/thirdparty/BytesUtil.sol @@ -401,6 +401,27 @@ library BytesUtil { } + function toUint16UnsafeUint(bytes memory _bytes, uint _start) internal pure returns (uint) { + uint tempUint; + + assembly { + tempUint := and(mload(add(add(_bytes, 0x2), _start)), 0xffff) + } + + return tempUint; + } + + function toUint24UnsafeUint(bytes memory _bytes, uint _start) internal pure returns (uint) { + uint tempUint; + + assembly { + tempUint := and(mload(add(add(_bytes, 0x3), _start)), 0xffffff) + } + + return tempUint; + } + + function fastSHA256( bytes memory data ) diff --git a/packages/loopring_v3/test/ammUtils.ts b/packages/loopring_v3/test/ammUtils.ts index 5e8fbbe99..8ccc17109 100644 --- a/packages/loopring_v3/test/ammUtils.ts +++ b/packages/loopring_v3/test/ammUtils.ts @@ -1,7 +1,7 @@ import BN = require("bn.js"); import { Constants, Signature } from "loopringV3.js"; import { ExchangeTestUtil } from "./testExchangeUtil"; -import { AuthMethod, BlockCallback } from "./types"; +import { AuthMethod, TransactionReceiverCallback } from "./types"; import * as sigUtil from "eth-sig-util"; import { SignatureType, sign, verifySignature } from "../util/Signature"; import { roundToFloatValue } from "loopringV3.js"; @@ -729,15 +729,15 @@ export class AmmPool { ]); } - public static getBlockCallback(transaction: TxType) { - const blockCallback: BlockCallback = { + public static getTransactionReceiverCallback(transaction: TxType) { + const transactionReceiverCallback: TransactionReceiverCallback = { target: transaction.poolAddress, txIdx: transaction.txIdx, numTxs: transaction.numTxs, auxiliaryData: AmmPool.getAuxiliaryData(transaction), tx: transaction }; - return blockCallback; + return transactionReceiverCallback; } public async verifySupply(expectedTotalSupply?: BN) { diff --git a/packages/loopring_v3/test/testBridge.ts b/packages/loopring_v3/test/testBridge.ts index cd69cf605..53e9afa3e 100644 --- a/packages/loopring_v3/test/testBridge.ts +++ b/packages/loopring_v3/test/testBridge.ts @@ -10,6 +10,7 @@ import { import { AuthMethod, Transfer } from "./types"; import { SignatureType, sign, verifySignature } from "../util/Signature"; import * as sigUtil from "eth-sig-util"; +import { Bitstream } from "loopringV3.js"; const AgentRegistry = artifacts.require("AgentRegistry"); @@ -18,6 +19,9 @@ const TestSwapper = artifacts.require("TestSwapper"); const TestSwappperBridgeConnector = artifacts.require( "TestSwappperBridgeConnector" ); +const TestMigrationBridgeConnector = artifacts.require( + "TestMigrationBridgeConnector" +); export interface BridgeTransfer { owner: string; @@ -48,6 +52,7 @@ export interface BridgeCall { validUntil: number; connector: string; groupData: string; + expectedDeposit?: BridgeTransfer; } export interface ConnectorGroup { @@ -58,14 +63,14 @@ export interface ConnectorGroup { export interface ConnectorCalls { connector: string; gasLimit: number; - totalMinGas: number; groups: ConnectorGroup[]; + totalMinGas: number; tokens: TokenData[]; } export interface TransferBatch { batchID: number; - transfers: InternalBridgeTransfer[]; + amounts: string[]; } export interface BridgeOperations { @@ -95,18 +100,16 @@ export namespace CollectTransferUtils { { name: "verifyingContract", type: "address" } ], BridgeCall: [ - { name: "from", type: "address" }, - { name: "to", type: "address" }, { name: "tokenID", type: "uint16" }, { name: "amount", type: "uint96" }, { name: "feeTokenID", type: "uint16" }, { name: "maxFee", type: "uint96" }, + { name: "validUntil", type: "uint32" }, { name: "storageID", type: "uint32" }, { name: "minGas", type: "uint32" }, { name: "connector", type: "address" }, { name: "groupData", type: "bytes" }, - { name: "userData", type: "bytes" }, - { name: "validUntil", type: "uint256" } + { name: "userData", type: "bytes" } ] }, primaryType: "BridgeCall", @@ -117,18 +120,16 @@ export namespace CollectTransferUtils { verifyingContract }, message: { - from: callWrapper.transfer.from, - to: callWrapper.transfer.to, tokenID: callWrapper.transfer.tokenID, amount: callWrapper.transfer.amount, feeTokenID: callWrapper.transfer.feeTokenID, maxFee: callWrapper.call.maxFee, + validUntil: callWrapper.call.validUntil, storageID: callWrapper.transfer.storageID, minGas: callWrapper.call.minGas, connector: callWrapper.connector, groupData: callWrapper.groupData, - userData: callWrapper.call.userData, - validUntil: callWrapper.call.validUntil + userData: callWrapper.call.userData } }; return typedData; @@ -152,6 +153,8 @@ export class Bridge { public relayer: string; + public migrationConnector: string; + constructor(ctx: ExchangeTestUtil) { this.ctx = ctx; this.relayer = ctx.testContext.orderOwners[11]; @@ -176,9 +179,17 @@ export class Bridge { ); assert(deposit.accountID === this.accountID, "unexpected accountID"); + //console.log(this.contract); + //console.log(this.contract.contract); + //console.log(this.contract.contract.methods); + this.address = this.contract.address; } + public async setMigrationConnectorAddress(migrationConnector: string) { + this.migrationConnector = migrationConnector; + } + public async batchDeposit(deposits: BridgeTransfer[]) { const tokens: Map = new Map(); for (const deposit of deposits) { @@ -208,12 +219,12 @@ export class Bridge { "\x1b[46m%s\x1b[0m", "[BatchDeposit] Gas used: " + tx.receipt.gasUsed ); - const event = await this.ctx.assertEventEmitted(this.contract, "Transfers"); + const transferEvents = await this.ctx.getEvents(this.contract, "Transfers"); const depositEvents = await this.ctx.assertEventsEmitted( this.ctx.exchange, "DepositRequested", - 3 + tokens.size ); // Process the deposits @@ -224,49 +235,10 @@ export class Bridge { await this.ctx.submitTransactions(); await this.ctx.submitPendingBlocks(); - const blockCallback = this.ctx.addBlockCallback(this.address); - - for (const deposit of deposits) { - await this.ctx.transfer( - this.address, - deposit.owner, - deposit.token, - new BN(deposit.amount), - deposit.token, - new BN(0), - { - authMethod: AuthMethod.NONE, - amountToDeposit: new BN(0), - feeToDeposit: new BN(0), - transferToNew: true - } - ); - } - - const transfers: InternalBridgeTransfer[] = []; - for (const deposit of deposits) { - transfers.push({ - owner: deposit.owner, - tokenID: await this.ctx.getTokenID(deposit.token), - amount: deposit.amount - }); - } - - const bridgeOperations: BridgeOperations = { - transferBatches: [{ batchID: event.batchID.toNumber(), transfers }], - connectorCalls: [], - tokens: [] - }; - - // Set the pool transaction data on the callback - blockCallback.auxiliaryData = this.encodeBridgeOperations(bridgeOperations); - blockCallback.numTxs = deposits.length; - - await this.ctx.submitTransactions(); - await this.ctx.submitPendingBlocks(); + return transferEvents; } - public async submitCalls(calls: BridgeCall[]) { + public async setupCalls(calls: BridgeCall[]) { for (const call of calls) { await this.ctx.deposit( call.owner, @@ -279,6 +251,68 @@ export class Bridge { await this.ctx.submitTransactions(); await this.ctx.submitPendingBlocks(); + } + + public decodeTransfers(_data: string) { + const transfers: InternalBridgeTransfer[] = []; + const data = new Bitstream(_data); + for (let i = 0; i < data.length() / 34; i++) { + const transfer: InternalBridgeTransfer = { + owner: data.extractAddress(i * 34 + 0), + tokenID: data.extractUint16(i * 34 + 32), + amount: data.extractUint96(i * 34 + 20).toString(10) + }; + transfers.push(transfer); + } + return transfers; + } + + public async submitBridgeOperations( + transferEvents: any[], + calls: BridgeCall[], + expectedSuccess?: boolean[], + changeTransfers?: boolean + ) { + changeTransfers = changeTransfers ? true : false; + console.log("Change transfers: " + changeTransfers); + + const bridgeOperations: BridgeOperations = { + transferBatches: [], + connectorCalls: [], + tokens: [] + }; + + const blockCallback = this.ctx.addBlockCallback(this.address); + + for (const event of transferEvents) { + const amounts: string[] = []; + const transfers = this.decodeTransfers(event.transfers); + for (let i = 0; i < transfers.length; i++) { + const transfer = transfers[i]; + transfer.amount = changeTransfers + ? new BN(transfer.amount).div(new BN(2)).toString(10) + : transfer.amount; + await this.ctx.transfer( + this.address, + transfer.owner, + this.ctx.getTokenAddressFromID(transfer.tokenID), + new BN(transfer.amount), + this.ctx.getTokenAddressFromID(transfer.tokenID), + new BN(0), + { + authMethod: AuthMethod.NONE, + amountToDeposit: new BN(0), + feeToDeposit: new BN(0), + transferToNew: true + } + ); + amounts.push(transfer.amount); + } + bridgeOperations.transferBatches.push({ + batchID: event.batchID.toNumber(), + amounts + }); + } const tokenMap: Map = new Map(); for (const call of calls) { @@ -291,12 +325,6 @@ export class Bridge { ); } - const bridgeOperations: BridgeOperations = { - transferBatches: [], - connectorCalls: [], - tokens: [] - }; - for (const [token, amount] of tokenMap.entries()) { bridgeOperations.tokens.push({ token: token, @@ -305,7 +333,7 @@ export class Bridge { }); } - // Sor the calls on connector and group + // Sort the calls on connector and group for (const call of calls) { let connectorCalls: ConnectorCalls; for (let c = 0; c < bridgeOperations.connectorCalls.length; c++) { @@ -325,7 +353,7 @@ export class Bridge { } connectorCalls = { connector: call.connector, - gasLimit: 1000000, + gasLimit: 2000000, totalMinGas: 0, groups: [], tokens: connectorTokens @@ -368,8 +396,6 @@ export class Bridge { // Do L2 transactions // - const blockCallback = this.ctx.addBlockCallback(this.address); - for (const connectorCalls of bridgeOperations.connectorCalls) { for (const group of connectorCalls.groups) { for (const call of group.calls) { @@ -423,11 +449,107 @@ export class Bridge { // Set the pool transaction data on the callback blockCallback.auxiliaryData = this.encodeBridgeOperations(bridgeOperations); blockCallback.numTxs = calls.length * 2 + bridgeOperations.tokens.length; + for (const batch of bridgeOperations.transferBatches) { + blockCallback.numTxs += batch.amounts.length; + } + + //console.log("Bridge Data:"); + //console.log(blockCallback.auxiliaryData); await this.ctx.submitTransactions(); await this.ctx.submitPendingBlocks(); - await this.ctx.assertEventEmitted(this.contract, "BridgeCallSuccess"); + const connectorCallResultEvents = await this.ctx.assertEventsEmitted( + this.contract, + "ConnectorCallResult", + bridgeOperations.connectorCalls.length + ); + + if (expectedSuccess === undefined) { + expectedSuccess = new Array(bridgeOperations.connectorCalls.length).fill( + true + ); + } + + for (let i = 0; i < connectorCallResultEvents.length; i++) { + assert( + bridgeOperations.connectorCalls[i].connector === + connectorCallResultEvents[i].connector, + "unexpected success" + ); + assert( + expectedSuccess[i] === connectorCallResultEvents[i].success, + "unexpected success" + ); + } + + const expectedDepositTransfers: BridgeTransfer[] = []; + const expectedMigrationTransfers: BridgeTransfer[] = []; + for (const calls of bridgeOperations.connectorCalls) { + for (const group of calls.groups) { + for (const call of group.calls) { + if (call.expectedDeposit) { + if (calls.connector === this.migrationConnector) { + expectedMigrationTransfers.push(call.expectedDeposit); + } else { + expectedDepositTransfers.push(call.expectedDeposit); + } + } + } + } + } + + const newTransferEvents = await this.ctx.getEvents( + this.contract, + "Transfers" + ); + if ( + expectedDepositTransfers.length + expectedMigrationTransfers.length > + 0 + ) { + assert.equal( + newTransferEvents.length, + expectedMigrationTransfers.length > 0 ? 2 : 1, + "unexpected number of transfer events" + ); + + for (let c = 0; c < newTransferEvents.length; c++) { + const transfers = this.decodeTransfers(newTransferEvents[c].transfers); + const expectedTransfers = + newTransferEvents.length > 1 && c == 0 + ? expectedMigrationTransfers + : expectedDepositTransfers; + + assert.equal( + transfers.length, + expectedTransfers.length, + "unexpected number of new transfers" + ); + for (let i = 0; i < transfers.length; i++) { + assert.equal( + transfers[i].owner.toLowerCase(), + expectedTransfers[i].owner.toLowerCase(), + "unexpected owner" + ); + assert.equal( + this.ctx.getTokenAddressFromID(transfers[i].tokenID), + this.ctx.getTokenAddress(expectedTransfers[i].token), + "unexpected token" + ); + assert.equal( + transfers[i].amount, + expectedTransfers[i].amount, + "unexpected amount" + ); + } + } + } else { + assert.equal( + newTransferEvents.length, + 0, + "unexpected number of transfer events" + ); + } } public encodeBridgeOperations(bridgeOperations: BridgeOperations) { @@ -501,7 +623,13 @@ contract("Bridge", (accounts: string[]) => { let registryOwner: string; let swapper: any; - let testSwappperBridgeConnector: any; + let swappperBridgeConnectorA: any; + let swappperBridgeConnectorB: any; + + let failingSwapper: any; + let failingSwappperBridgeConnector: any; + + let migrationBridgeConnector: any; let rate: BN = new BN(web3.utils.toWei("1", "ether")); @@ -518,26 +646,41 @@ contract("Bridge", (accounts: string[]) => { from: registryOwner }); - swapper = await TestSwapper.new(rate); + swapper = await TestSwapper.new(rate, false); // Add some funds to the swapper contract for (const token of ["LRC", "WETH", "ETH"]) { await ctx.transferBalance( swapper.address, token, - new BN(web3.utils.toWei("20", "ether")) + new BN(web3.utils.toWei("100", "ether")) ); } - testSwappperBridgeConnector = await TestSwappperBridgeConnector.new( - ctx.exchange.address, + swappperBridgeConnectorA = await TestSwappperBridgeConnector.new( swapper.address ); + swappperBridgeConnectorB = await TestSwappperBridgeConnector.new( + swapper.address + ); + + failingSwapper = await TestSwapper.new(rate, true); + + failingSwappperBridgeConnector = await TestSwappperBridgeConnector.new( + failingSwapper.address + ); + + migrationBridgeConnector = await TestMigrationBridgeConnector.new( + ctx.exchange.address, + bridge.address + ); + + bridge.setMigrationConnectorAddress(migrationBridgeConnector.address); return bridge; }; - const encodeGroupSettings = (tokenIn: string, tokenOut: string) => { + const encodeSwapGroupSettings = (tokenIn: string, tokenOut: string) => { return web3.eth.abi.encodeParameter( { "struct GroupSettings": { @@ -565,12 +708,78 @@ contract("Bridge", (accounts: string[]) => { ); }; + const encodeMigrateGroupSettings = (token: string) => { + return web3.eth.abi.encodeParameter( + { + "struct GroupSettings": { + token: "address" + } + }, + { + token: ctx.getTokenAddress(token) + } + ); + }; + + const encodeMigrateUserSettings = (to: string) => { + return web3.eth.abi.encodeParameter( + { + "struct UserSettings": { + to: "address" + } + }, + { + to: to + } + ); + }; + const round = (value: string) => { return roundToFloatValue(new BN(value), Constants.Float24Encoding).toString( 10 ); }; + const convert = (amount: string) => { + const RATE_BASE = new BN(web3.utils.toWei("1", "ether")); + return new BN(amount) + .mul(rate) + .div(RATE_BASE) + .toString(10); + }; + + const withdrawFromPendingBatchDepositChecked = async ( + bridge: Bridge, + depositID: number, + transfers: InternalBridgeTransfer[], + indices: number[] + ) => { + // Simulate all transfers + const snapshot = new BalanceSnapshot(ctx); + + // Simulate withdrawals + for (const idx of indices) { + await snapshot.transfer( + bridge.address, + transfers[idx].owner, + ctx.getTokenAddressFromID(transfers[idx].tokenID), + new BN(transfers[idx].amount), + "bridge", + "owner" + ); + } + + // Do the withdrawal + await bridge.contract.withdrawFromPendingBatchDeposit( + depositID, + transfers, + indices + ); + + // Verify balances + await snapshot.verifyBalances(); + }; + before(async () => { ctx = new ExchangeTestUtil(); await ctx.initialize(accounts); @@ -609,59 +818,118 @@ contract("Bridge", (accounts: string[]) => { it("Batch deposit", async () => { const bridge = await setupBridge(); - const deposits: BridgeTransfer[] = []; - deposits.push({ + const depositsA: BridgeTransfer[] = []; + depositsA.push({ owner: ownerA, token: ctx.getTokenAddress("ETH"), amount: web3.utils.toWei("1", "ether") }); - deposits.push({ + depositsA.push({ owner: ownerB, token: ctx.getTokenAddress("ETH"), amount: web3.utils.toWei("2.1265", "ether") }); - deposits.push({ + depositsA.push({ owner: ownerB, token: ctx.getTokenAddress("LRC"), amount: web3.utils.toWei("26.2154454177", "ether") }); - deposits.push({ + depositsA.push({ owner: ownerA, token: ctx.getTokenAddress("LRC"), amount: web3.utils.toWei("1028.2154454177", "ether") }); - deposits.push({ + depositsA.push({ owner: ownerB, token: ctx.getTokenAddress("ETH"), amount: web3.utils.toWei("1.15484511245", "ether") }); - deposits.push({ + depositsA.push({ owner: ownerB, token: ctx.getTokenAddress("LRC"), amount: web3.utils.toWei("12545.15484511245", "ether") }); - deposits.push({ + + const depositsB: BridgeTransfer[] = []; + depositsB.push({ + owner: ownerB, + token: ctx.getTokenAddress("WETH"), + amount: web3.utils.toWei("12.15484511245", "ether") + }); + depositsB.push({ + owner: ownerB, + token: ctx.getTokenAddress("ETH"), + amount: web3.utils.toWei("1.15484511245", "ether") + }); + depositsB.push({ + owner: ownerB, + token: ctx.getTokenAddress("LRC"), + amount: web3.utils.toWei("12545.15484511245", "ether") + }); + depositsB.push({ owner: ownerB, token: ctx.getTokenAddress("WETH"), amount: web3.utils.toWei("12.15484511245", "ether") }); - await bridge.batchDeposit(deposits); + const transferEventsA = await bridge.batchDeposit(depositsA); + const transferEventsB = await bridge.batchDeposit(depositsB); + await bridge.submitBridgeOperations( + [...transferEventsA, ...transferEventsB], + [] + ); + + const depositsC: BridgeTransfer[] = []; + depositsC.push({ + owner: ownerB, + token: ctx.getTokenAddress("WETH"), + amount: web3.utils.toWei("1", "ether") + }); + depositsC.push({ + owner: ownerB, + token: ctx.getTokenAddress("ETH"), + amount: web3.utils.toWei("2", "ether") + }); + depositsC.push({ + owner: ownerB, + token: ctx.getTokenAddress("LRC"), + amount: web3.utils.toWei("3", "ether") + }); + const transferEventsC = await bridge.batchDeposit(depositsC); + // Try to different transfers + await expectThrow( + bridge.submitBridgeOperations(transferEventsC, [], undefined, true), + "UNKNOWN_TRANSFERS" + ); }); - it.only("Batch call", async () => { + it("Bridge calls", async () => { const bridge = await setupBridge(); await bridge.contract.setConnectorTrusted( - testSwappperBridgeConnector.address, + swappperBridgeConnectorA.address, + true + ); + await bridge.contract.setConnectorTrusted( + swappperBridgeConnectorB.address, + true + ); + await bridge.contract.setConnectorTrusted( + failingSwappperBridgeConnector.address, + true + ); + await bridge.contract.setConnectorTrusted( + migrationBridgeConnector.address, true ); - const group_ETH_LRC = encodeGroupSettings("ETH", "LRC"); - const group_LRC_ETH = encodeGroupSettings("LRC", "ETH"); - const group_WETH_LRC = encodeGroupSettings("WETH", "LRC"); + const group_ETH_LRC = encodeSwapGroupSettings("ETH", "LRC"); + const group_LRC_ETH = encodeSwapGroupSettings("LRC", "ETH"); + const group_WETH_LRC = encodeSwapGroupSettings("WETH", "LRC"); const calls: BridgeCall[] = []; + // Successful swap connector call + // ETH -> LRC calls.push({ owner: ownerA, token: "ETH", @@ -670,9 +938,14 @@ contract("Bridge", (accounts: string[]) => { maxFee: "0", minGas: 30000, userData: "0x", - validUntil: 0xffffffff, - connector: testSwappperBridgeConnector.address, - groupData: group_ETH_LRC + validUntil: 0, + connector: swappperBridgeConnectorA.address, + groupData: group_ETH_LRC, + expectedDeposit: { + owner: ownerA, + token: "LRC", + amount: convert(round(web3.utils.toWei("1.0132", "ether"))) + } }); calls.push({ owner: ownerB, @@ -684,9 +957,14 @@ contract("Bridge", (accounts: string[]) => { userData: encodeSwapUserSettings( new BN(web3.utils.toWei("2", "ether")) ), - validUntil: 0xffffffff, - connector: testSwappperBridgeConnector.address, - groupData: group_ETH_LRC + validUntil: 0, + connector: swappperBridgeConnectorA.address, + groupData: group_ETH_LRC, + expectedDeposit: { + owner: ownerB, + token: "LRC", + amount: convert(round(web3.utils.toWei("2.0456546565", "ether"))) + } }); calls.push({ owner: ownerC, @@ -696,12 +974,39 @@ contract("Bridge", (accounts: string[]) => { maxFee: "0", minGas: 30000, userData: encodeSwapUserSettings( - new BN(web3.utils.toWei("4", "ether")) + new BN(web3.utils.toWei("3.5", "ether")) ), - validUntil: 0xffffffff, - connector: testSwappperBridgeConnector.address, - groupData: group_ETH_LRC + validUntil: 0, + connector: swappperBridgeConnectorA.address, + groupData: group_ETH_LRC, + expectedDeposit: { + owner: ownerC, + token: "ETH", + amount: convert(round(web3.utils.toWei("3.458415454541", "ether"))) + } + }); + // WETH -> LRC + calls.push({ + owner: ownerC, + token: "WETH", + amount: round(web3.utils.toWei("6.458415454541", "ether")), + feeToken: "LRC", + maxFee: "0", + minGas: 30000, + userData: encodeSwapUserSettings( + new BN(web3.utils.toWei("3.5", "ether")) + ), + validUntil: 0, + connector: swappperBridgeConnectorA.address, + groupData: group_WETH_LRC, + expectedDeposit: { + owner: ownerC, + token: "LRC", + amount: convert(round(web3.utils.toWei("6.458415454541", "ether"))) + } }); + + // Different swapper calls.push({ owner: ownerD, token: "ETH", @@ -712,15 +1017,74 @@ contract("Bridge", (accounts: string[]) => { userData: encodeSwapUserSettings( new BN(web3.utils.toWei("1", "ether")) ), - validUntil: 0xffffffff, - connector: testSwappperBridgeConnector.address, - groupData: group_ETH_LRC + validUntil: 0, + connector: swappperBridgeConnectorB.address, + groupData: group_ETH_LRC, + expectedDeposit: { + owner: ownerD, + token: "LRC", + amount: convert(round(web3.utils.toWei("1.458415454541", "ether"))) + } + }); + calls.push({ + owner: ownerA, + token: "ETH", + amount: round(web3.utils.toWei("1.0132", "ether")), + feeToken: "ETH", + maxFee: "0", + minGas: 30000, + userData: "0x", + validUntil: 0, + connector: swappperBridgeConnectorB.address, + groupData: group_ETH_LRC, + expectedDeposit: { + owner: ownerA, + token: "LRC", + amount: convert(round(web3.utils.toWei("1.0132", "ether"))) + } }); + // Unsuccessful swap connector call + calls.push({ + owner: ownerA, + token: "ETH", + amount: round(web3.utils.toWei("1.0132", "ether")), + feeToken: "ETH", + maxFee: "0", + minGas: 30000, + userData: "0x", + validUntil: 0, + connector: failingSwappperBridgeConnector.address, + groupData: group_ETH_LRC, + expectedDeposit: { + owner: ownerA, + token: "ETH", + amount: round(web3.utils.toWei("1.0132", "ether")) + } + }); + calls.push({ + owner: ownerB, + token: "ETH", + amount: round(web3.utils.toWei("2.0456546565", "ether")), + feeToken: "ETH", + maxFee: "0", + minGas: 30000, + userData: encodeSwapUserSettings( + new BN(web3.utils.toWei("2", "ether")) + ), + validUntil: 0, + connector: failingSwappperBridgeConnector.address, + groupData: group_ETH_LRC, + expectedDeposit: { + owner: ownerB, + token: "ETH", + amount: round(web3.utils.toWei("2.0456546565", "ether")) + } + }); calls.push({ owner: ownerB, token: "LRC", - amount: round(web3.utils.toWei("1.458415454541", "ether")), + amount: round(web3.utils.toWei("12.458415454541", "ether")), feeToken: "LRC", maxFee: "0", minGas: 30000, @@ -728,14 +1092,18 @@ contract("Bridge", (accounts: string[]) => { new BN(web3.utils.toWei("1", "ether")) ), validUntil: 0xffffffff, - connector: testSwappperBridgeConnector.address, - groupData: group_LRC_ETH + connector: failingSwappperBridgeConnector.address, + groupData: group_LRC_ETH, + expectedDeposit: { + owner: ownerB, + token: "LRC", + amount: round(web3.utils.toWei("12.458415454541", "ether")) + } }); - calls.push({ - owner: ownerB, + owner: ownerC, token: "WETH", - amount: round(web3.utils.toWei("1.458415454541", "ether")), + amount: round(web3.utils.toWei("12.458415454541", "ether")), feeToken: "WETH", maxFee: "0", minGas: 30000, @@ -743,13 +1111,204 @@ contract("Bridge", (accounts: string[]) => { new BN(web3.utils.toWei("1", "ether")) ), validUntil: 0xffffffff, - connector: testSwappperBridgeConnector.address, - groupData: group_WETH_LRC + connector: failingSwappperBridgeConnector.address, + groupData: group_WETH_LRC, + expectedDeposit: { + owner: ownerC, + token: "WETH", + amount: round(web3.utils.toWei("12.458415454541", "ether")) + } }); - await bridge.submitCalls(calls); + // Migrate + calls.push({ + owner: ownerA, + token: "ETH", + amount: round(web3.utils.toWei("1.0132", "ether")), + feeToken: "ETH", + maxFee: "0", + minGas: 30000, + userData: "0x", + validUntil: 0, + connector: migrationBridgeConnector.address, + groupData: encodeMigrateGroupSettings("ETH"), + expectedDeposit: { + owner: ownerA, + token: "ETH", + amount: round(web3.utils.toWei("1.0132", "ether")) + } + }); + calls.push({ + owner: ownerB, + token: "ETH", + amount: round(web3.utils.toWei("10.132", "ether")), + feeToken: "ETH", + maxFee: "0", + minGas: 30000, + userData: encodeMigrateUserSettings(ownerA), + validUntil: 0, + connector: migrationBridgeConnector.address, + groupData: encodeMigrateGroupSettings("ETH"), + expectedDeposit: { + owner: ownerA, + token: "ETH", + amount: round(web3.utils.toWei("10.132", "ether")) + } + }); + calls.push({ + owner: ownerB, + token: "LRC", + amount: round(web3.utils.toWei("123.3132", "ether")), + feeToken: "ETH", + maxFee: "0", + minGas: 30000, + userData: encodeMigrateUserSettings(ownerB), + validUntil: 0, + connector: migrationBridgeConnector.address, + groupData: encodeMigrateGroupSettings("LRC"), + expectedDeposit: { + owner: ownerB, + token: "LRC", + amount: round(web3.utils.toWei("123.3132", "ether")) + } + }); + calls.push({ + owner: ownerB, + token: "LRC", + amount: round(web3.utils.toWei("1234.1132", "ether")), + feeToken: "ETH", + maxFee: "0", + minGas: 30000, + userData: encodeMigrateUserSettings(ownerD), + validUntil: 0, + connector: migrationBridgeConnector.address, + groupData: encodeMigrateGroupSettings("LRC"), + expectedDeposit: { + owner: ownerD, + token: "LRC", + amount: round(web3.utils.toWei("1234.1132", "ether")) + } + }); + + await bridge.setupCalls(calls); + await bridge.submitBridgeOperations([], calls, [true, true, false, true]); + + // Handle resulting batched deposits + const depositEvents = await ctx.getEvents( + ctx.exchange, + "DepositRequested" + ); + for (const deposit of depositEvents) { + await ctx.requestDeposit( + bridge.address, + deposit.token, + new BN(deposit.amount) + ); + } + const transferEvents = await ctx.getEvents(bridge.contract, "Transfers"); + await bridge.submitBridgeOperations(transferEvents, []); + + // assert(false); + }); + + it("Manual withdrawal", async () => { + const bridge = await setupBridge(); + + const deposits: BridgeTransfer[] = []; + deposits.push({ + owner: ownerA, + token: ctx.getTokenAddress("ETH"), + amount: web3.utils.toWei("1", "ether") + }); + deposits.push({ + owner: ownerB, + token: ctx.getTokenAddress("ETH"), + amount: web3.utils.toWei("1", "ether") + }); + deposits.push({ + owner: ownerB, + token: ctx.getTokenAddress("LRC"), + amount: web3.utils.toWei("1", "ether") + }); + deposits.push({ + owner: ownerA, + token: ctx.getTokenAddress("LRC"), + amount: web3.utils.toWei("1", "ether") + }); + deposits.push({ + owner: ownerB, + token: ctx.getTokenAddress("ETH"), + amount: web3.utils.toWei("1", "ether") + }); + deposits.push({ + owner: ownerB, + token: ctx.getTokenAddress("WETH"), + amount: web3.utils.toWei("1", "ether") + }); + + const transferEvents = await bridge.batchDeposit(deposits); + + await ctx.submitTransactions(); + await ctx.submitPendingBlocks(); - assert(false); + const withdrawalFee = await ctx.loopringV3.forcedWithdrawalFee(); + await bridge.contract.forceWithdraw( + [ctx.getTokenAddress("ETH"), ctx.getTokenAddress("LRC")], + { + value: withdrawalFee.mul(new BN(2)) + } + ); + + await ctx.requestWithdrawal( + bridge.address, + "ETH", + new BN(web3.utils.toWei("3", "ether")), + "ETH", + new BN(0), + { + authMethod: AuthMethod.FORCE, + skipForcedAuthentication: true + } + ); + + await ctx.requestWithdrawal( + bridge.address, + "LRC", + new BN(web3.utils.toWei("2", "ether")), + "ETH", + new BN(0), + { + authMethod: AuthMethod.FORCE, + skipForcedAuthentication: true + } + ); + + await ctx.submitTransactions(); + await ctx.submitPendingBlocks(); + + const transfers = bridge.decodeTransfers(transferEvents[0].transfers); + + await expectThrow( + bridge.contract.withdrawFromPendingBatchDeposit(0, transfers, [1]), + "TRANSFERS_NOT_TOO_OLD" + ); + + const MAX_AGE_PENDING_TRANSFER = ( + await bridge.contract.MAX_AGE_PENDING_TRANSFER() + ).toNumber(); + await ctx.advanceBlockTimestamp(MAX_AGE_PENDING_TRANSFER + 1); + + await withdrawFromPendingBatchDepositChecked(bridge, 0, transfers, [ + 1, + 3 + ]); + + await withdrawFromPendingBatchDepositChecked(bridge, 0, transfers, [0]); + + await expectThrow( + bridge.contract.withdrawFromPendingBatchDeposit(0, transfers, [1, 2]), + "ALREADY_WITHDRAWN" + ); }); }); }); diff --git a/packages/loopring_v3/test/testConverter.ts b/packages/loopring_v3/test/testConverter.ts index d3a7d6d6a..c181b81ab 100644 --- a/packages/loopring_v3/test/testConverter.ts +++ b/packages/loopring_v3/test/testConverter.ts @@ -41,11 +41,7 @@ export class Converter { this.tokenOut = tokenOut; this.ticker = ticker; - const swapper = await TestSwapper.new( - this.ctx.getTokenAddress(tokenIn), - this.ctx.getTokenAddress(tokenOut), - rate - ); + const swapper = await TestSwapper.new(rate); this.contract = await TestConverter.new( this.ctx.exchange.address, diff --git a/packages/loopring_v3/test/testDebugTools.ts b/packages/loopring_v3/test/testDebugTools.ts index cba1e60d5..c73a93575 100644 --- a/packages/loopring_v3/test/testDebugTools.ts +++ b/packages/loopring_v3/test/testDebugTools.ts @@ -3,7 +3,7 @@ import fs = require("fs"); import { AmmPool } from "./ammUtils"; import { Constants } from "loopringV3.js"; import { ExchangeTestUtil, OnchainBlock } from "./testExchangeUtil"; -import { BlockCallback } from "./types"; +import { TransactionReceiverCallback } from "./types"; import { calculateCalldataCost, compressZeros } from "loopringV3.js"; contract("Exchange", (accounts: string[]) => { @@ -71,7 +71,7 @@ contract("Exchange", (accounts: string[]) => { const useCompression = false; const onchainBlocks: OnchainBlock[] = []; - const blockCallbacks: BlockCallback[][] = []; + const transactionReceiverCallback: TransactionReceiverCallback[][] = []; for (const blockName of blockNames) { const baseFilename = blockDirectory + blockName; //const auxDataFilename = baseFilename + "_auxiliaryData.json"; @@ -124,14 +124,14 @@ contract("Exchange", (accounts: string[]) => { console.log(onchainBlock); // Read the AMM transactions - const callbacks: BlockCallback[] = []; + const callbacks: TransactionReceiverCallback[] = []; for (const ammTx of blockInfo.ammTransactions) { - callbacks.push(AmmPool.getBlockCallback(ammTx)); + callbacks.push(AmmPool.getTransactionReceiverCallback(ammTx)); } //console.log(callbacks); onchainBlocks.push(onchainBlock); - blockCallbacks.push(callbacks); + transactionReceiverCallback.push(callbacks); } const submitBlocksTxData = ctx.getSubmitCallbackData(onchainBlocks); @@ -141,7 +141,7 @@ contract("Exchange", (accounts: string[]) => { const withCallbacksParameters = ctx.getSubmitBlocksWithCallbacksData( useCompression, submitBlocksTxData, - blockCallbacks, + transactionReceiverCallback, [], [] ); diff --git a/packages/loopring_v3/test/testExchangeUtil.ts b/packages/loopring_v3/test/testExchangeUtil.ts index a35d2f6e6..67332ec10 100644 --- a/packages/loopring_v3/test/testExchangeUtil.ts +++ b/packages/loopring_v3/test/testExchangeUtil.ts @@ -33,7 +33,7 @@ import { AmmUpdate, AuthMethod, Block, - BlockCallback, + TransactionReceiverCallback, Deposit, FlashMint, PostBlocksCallback, @@ -480,7 +480,7 @@ export class ExchangeTestUtil { public explorer: Explorer; - public blockSizes = [8, 16]; + public blockSizes = [16, 24, 32, 48]; public loopringV3: any; public blockVerifier: any; @@ -537,7 +537,7 @@ export class ExchangeTestUtil { public deterministic: boolean = false; private pendingTransactions: TxType[][] = []; - private pendingBlockCallbacks: BlockCallback[][] = []; + private pendingTransactionReceiverCallbacks: TransactionReceiverCallback[][] = []; private pendingFlashMints: FlashMint[][] = []; private pendingPostBlocksCallbacks: PostBlocksCallback[][] = []; @@ -583,7 +583,7 @@ export class ExchangeTestUtil { for (let i = 0; i < this.MAX_NUM_EXCHANGES; i++) { this.pendingTransactions.push([]); - this.pendingBlockCallbacks.push([]); + this.pendingTransactionReceiverCallbacks.push([]); this.pendingFlashMints.push([]); this.pendingPostBlocksCallbacks.push([]); this.pendingBlocks.push([]); @@ -660,6 +660,18 @@ export class ExchangeTestUtil { }); } + public async getEvents(contract: any, event: string) { + const eventArr: any = await this.getEventsFromContract( + contract, + event, + web3.eth.blockNumber + ); + const items = eventArr.map((eventObj: any) => { + return eventObj.args; + }); + return items; + } + // This works differently from truffleAssert.eventEmitted in that it also is able to // get events emmitted in `deep contracts` (i.e. events not emmitted in the contract // the function got called in). @@ -1740,7 +1752,7 @@ export class ExchangeTestUtil { timestamp: 0, transactionHash: "0", internalBlock: txBlock, - callbacks: this.pendingBlockCallbacks[this.exchangeId] + callbacks: this.pendingTransactionReceiverCallbacks[this.exchangeId] }; this.pendingBlocks[this.exchangeId].push(block); this.blocks[this.exchangeId].push(block); @@ -1839,7 +1851,7 @@ export class ExchangeTestUtil { } } - public getCallbackConfig(blockCallbacks: BlockCallback[][]) { + public getCallbackConfig(calls: TransactionReceiverCallback[][]) { interface TxCallback { txIdx: number; numTxs: number; @@ -1852,18 +1864,18 @@ export class ExchangeTestUtil { txCallbacks: TxCallback[]; } - interface CallbackConfig { - blockCallbacks: OnchainBlockCallback[]; + interface TransactionReceiverCallbacks { + callbacks: OnchainBlockCallback[]; receivers: string[]; } - const callbackConfig: CallbackConfig = { - blockCallbacks: [], + const transactionReceiverCallbacks: TransactionReceiverCallbacks = { + callbacks: [], receivers: [] }; //console.log("Block callbacks: "); - for (const [blockIdx, callbacks] of blockCallbacks.entries()) { + for (const [blockIdx, callbacks] of calls.entries()) { //console.log(blockIdx); //console.log(block.callbacks); if (callbacks.length > 0) { @@ -1871,16 +1883,16 @@ export class ExchangeTestUtil { blockIdx, txCallbacks: [] }; - callbackConfig.blockCallbacks.push(onchainBlockCallback); + transactionReceiverCallbacks.callbacks.push(onchainBlockCallback); for (const blockCallback of callbacks) { // Find receiver index - let receiverIdx = callbackConfig.receivers.findIndex( + let receiverIdx = transactionReceiverCallbacks.receivers.findIndex( target => target === blockCallback.target ); if (receiverIdx === -1) { - receiverIdx = callbackConfig.receivers.length; - callbackConfig.receivers.push(blockCallback.target); + receiverIdx = transactionReceiverCallbacks.receivers.length; + transactionReceiverCallbacks.receivers.push(blockCallback.target); } // Add the block callback to the list onchainBlockCallback.txCallbacks.push({ @@ -1897,7 +1909,7 @@ export class ExchangeTestUtil { //for (const bc of callbackConfig.blockCallbacks) { // console.log(bc); //} - return callbackConfig; + return transactionReceiverCallbacks; } public setPreApprovedTransactions(blocks: Block[]) { @@ -1992,7 +2004,7 @@ export class ExchangeTestUtil { public getSubmitBlocksWithCallbacksData( isDataCompressed: boolean, txData: string, - blockCallbacks: BlockCallback[][], + transactionReceiverCallbacks: TransactionReceiverCallback[][], flashMints: FlashMint[], postBlocksCallbacks: PostBlocksCallback[] ) { @@ -2000,7 +2012,7 @@ export class ExchangeTestUtil { //console.log(data); // Block callbacks - const callbackConfig = this.getCallbackConfig(blockCallbacks); + const callbackConfig = this.getCallbackConfig(transactionReceiverCallbacks); return { isDataCompressed, @@ -2090,7 +2102,7 @@ export class ExchangeTestUtil { // Prepare block data const onchainBlocks: OnchainBlock[] = []; - const blockCallbacks: BlockCallback[][] = []; + const transactionReceiverCallbacks: TransactionReceiverCallback[][] = []; for (const block of blocks) { //console.log(block.blockIdx); const onchainBlock = this.getOnchainBlock( @@ -2104,7 +2116,7 @@ export class ExchangeTestUtil { block.blockVersion ); onchainBlocks.push(onchainBlock); - blockCallbacks.push(block.callbacks); + transactionReceiverCallbacks.push(block.callbacks); } // Callback that allows modifying the blocks @@ -2128,7 +2140,7 @@ export class ExchangeTestUtil { const parameters = this.getSubmitBlocksWithCallbacksData( true, txData, - blockCallbacks, + transactionReceiverCallbacks, this.pendingFlashMints[this.exchangeId], this.pendingPostBlocksCallbacks[this.exchangeId] ); @@ -2279,14 +2291,16 @@ export class ExchangeTestUtil { } public addBlockCallback(target: string) { - const blockCallback: BlockCallback = { + const transactionReceiverCallback: TransactionReceiverCallback = { target, auxiliaryData: Constants.emptyBytes, txIdx: this.pendingTransactions[this.exchangeId].length, numTxs: 0 }; - this.pendingBlockCallbacks[this.exchangeId].push(blockCallback); - return blockCallback; + this.pendingTransactionReceiverCallbacks[this.exchangeId].push( + transactionReceiverCallback + ); + return transactionReceiverCallback; } public async submitPendingBlocks(testCallback?: any) { @@ -2405,7 +2419,9 @@ export class ExchangeTestUtil { } const ammTransactions: any[] = []; - for (const callback of this.pendingBlockCallbacks[this.exchangeId]) { + for (const callback of this.pendingTransactionReceiverCallbacks[ + this.exchangeId + ]) { ammTransactions.push(callback.tx); } @@ -2496,7 +2512,7 @@ export class ExchangeTestUtil { } this.pendingTransactions[exchangeID] = []; - this.pendingBlockCallbacks[exchangeID] = []; + this.pendingTransactionReceiverCallbacks[exchangeID] = []; return blocks; } diff --git a/packages/loopring_v3/test/types.ts b/packages/loopring_v3/test/types.ts index 832d8c096..1ee8ce498 100644 --- a/packages/loopring_v3/test/types.ts +++ b/packages/loopring_v3/test/types.ts @@ -222,7 +222,7 @@ export interface TxBlock { signature?: Signature; } -export interface BlockCallback { +export interface TransactionReceiverCallback { target: string; txIdx: number; numTxs: number; @@ -263,7 +263,7 @@ export interface Block { internalBlock: TxBlock; blockInfoData?: any; shutdown?: boolean; - callbacks?: BlockCallback[]; + callbacks?: TransactionReceiverCallback[]; } export interface Account { diff --git a/packages/loopring_v3/truffle.js b/packages/loopring_v3/truffle.js index 2c5a259fc..5daff5d80 100644 --- a/packages/loopring_v3/truffle.js +++ b/packages/loopring_v3/truffle.js @@ -50,7 +50,7 @@ module.exports = { runs: 1000000 } }, - version: "0.7.0" + version: "0.7.6" } }, plugins: ["truffle-plugin-verify", "solidity-coverage"], From 9d96ffdbe602dfc382b25eb6a48d6c175015a2f6 Mon Sep 17 00:00:00 2001 From: Brechtpd Date: Mon, 12 Apr 2021 22:21:37 +0200 Subject: [PATCH 14/15] Small improvements --- packages/loopring_v3.js/src/exchange_v3.ts | 2 +- .../aux/access/LoopringIOExchangeOwner.sol | 33 +++--- .../contracts/aux/bridge/Bridge.sol | 44 +++++++- .../contracts/aux/bridge/BridgeData.sol | 62 ----------- .../contracts/aux/bridge/IBridge.sol | 84 ++++++++++++++- .../contracts/aux/bridge/IBridgeConnector.sol | 20 ---- .../test/TestMigrationBridgeConnector.sol | 2 +- .../test/TestSwappperBridgeConnector.sol | 1 - packages/loopring_v3/ganache.sh | 100 +++++++++--------- packages/loopring_v3/test/testConverter.ts | 12 ++- packages/loopring_v3/test/testExchangeUtil.ts | 29 ++--- packages/loopring_v3/test/types.ts | 3 +- 12 files changed, 220 insertions(+), 172 deletions(-) delete mode 100644 packages/loopring_v3/contracts/aux/bridge/BridgeData.sol delete mode 100644 packages/loopring_v3/contracts/aux/bridge/IBridgeConnector.sol diff --git a/packages/loopring_v3.js/src/exchange_v3.ts b/packages/loopring_v3.js/src/exchange_v3.ts index 2e0b21d08..c277153a6 100644 --- a/packages/loopring_v3.js/src/exchange_v3.ts +++ b/packages/loopring_v3.js/src/exchange_v3.ts @@ -626,7 +626,7 @@ export class ExchangeV3 { // Get the block data from the transaction data //const submitBlocksFunctionSignature = "0x8dadd3af"; // submitBlocks - const submitBlocksFunctionSignature = "0x11edcb4d"; // submitBlocksWithCallbacks + const submitBlocksFunctionSignature = "0xc39ce618"; // submitBlocksWithCallbacks const transaction = await this.web3.eth.getTransaction( event.transactionHash diff --git a/packages/loopring_v3/contracts/aux/access/LoopringIOExchangeOwner.sol b/packages/loopring_v3/contracts/aux/access/LoopringIOExchangeOwner.sol index 5cf6ecb5a..37464edf9 100644 --- a/packages/loopring_v3/contracts/aux/access/LoopringIOExchangeOwner.sol +++ b/packages/loopring_v3/contracts/aux/access/LoopringIOExchangeOwner.sol @@ -50,10 +50,11 @@ contract LoopringIOExchangeOwner is SelectorBasedAccessManager, ERC1271, Drainab address[] receivers; } - struct PostBlocksCallback + struct Callback { address to; bytes data; + bool before; } constructor( @@ -101,7 +102,7 @@ contract LoopringIOExchangeOwner is SelectorBasedAccessManager, ERC1271, Drainab bytes calldata data, TransactionReceiverCallbacks calldata config, ExchangeData.FlashMint[] calldata flashMints, - PostBlocksCallback[] calldata postBlocksCallbacks + Callback[] calldata callbacks ) external { @@ -131,6 +132,9 @@ contract LoopringIOExchangeOwner is SelectorBasedAccessManager, ERC1271, Drainab // Decode the blocks ExchangeData.Block[] memory blocks = _decodeBlocks(decompressed); + // Do pre blocks callbacks + _processCallbacks(callbacks, true); + // Do flash mints if (flashMints.length > 0) { IExchangeV3(target).flashMint(flashMints); @@ -143,7 +147,7 @@ contract LoopringIOExchangeOwner is SelectorBasedAccessManager, ERC1271, Drainab _verifyTransactions(blocks, config); // Do post blocks callbacks - _afterBlockSubmission(blocks, postBlocksCallbacks); + _processCallbacks(callbacks, false); // Make sure flash mints were repaid if (flashMints.length > 0) { @@ -210,21 +214,26 @@ contract LoopringIOExchangeOwner is SelectorBasedAccessManager, ERC1271, Drainab } } - function _afterBlockSubmission( - ExchangeData.Block[] memory /*blocks*/, - PostBlocksCallback[] calldata postBlocksCallbacks + function _processCallbacks( + Callback[] calldata callbacks, + bool before ) private { - for (uint i = 0; i < postBlocksCallbacks.length; i++) { + for (uint i = 0; i < callbacks.length; i++) { + Callback calldata callback = callbacks[i]; + if (callback.before != before) { + continue; + } + // Disallow calls to self, the exchange and TransactionReceiver functions require( - postBlocksCallbacks[i].to != target && - postBlocksCallbacks[i].to != address(this), + callback.to != target && + callback.to != address(this), "EXCHANGE_CANNOT_BE_POST_CALLBACK_TARGET" ); - require(postBlocksCallbacks[i].data.toBytes4(0) != ITransactionReceiver.onReceiveTransactions.selector, "INVALID_POST_CALLBACK_FUNCTION"); - (bool success, bytes memory returnData) = postBlocksCallbacks[i].to.call(postBlocksCallbacks[i].data); + require(callback.data.toBytes4(0) != ITransactionReceiver.onReceiveTransactions.selector, "INVALID_POST_CALLBACK_FUNCTION"); + (bool success, bytes memory returnData) = callback.to.call(callback.data); if (!success) { assembly { revert(add(returnData, 32), mload(returnData)) } } @@ -297,7 +306,7 @@ contract LoopringIOExchangeOwner is SelectorBasedAccessManager, ERC1271, Drainab txsData := add(txData, 100) mstore(txsData, txsDataLength) - // callbackData + // copy callbackData calldatacopy(add(txData, add(36, newCallbackDataOffset)), sub(callbackData.offset, 32), add(callbackDataLength, 32)) mstore(0x40, add(add(txData, totalLength), 32)) diff --git a/packages/loopring_v3/contracts/aux/bridge/Bridge.sol b/packages/loopring_v3/contracts/aux/bridge/Bridge.sol index 68a9691f4..b23c1ab38 100644 --- a/packages/loopring_v3/contracts/aux/bridge/Bridge.sol +++ b/packages/loopring_v3/contracts/aux/bridge/Bridge.sol @@ -13,12 +13,12 @@ import "../../lib/MathUint.sol"; import "../../lib/MathUint96.sol"; import "../../lib/ReentrancyGuard.sol"; -import "./BridgeData.sol"; -import "./IBridgeConnector.sol"; +import "./IBridge.sol"; -/// @title Bridge -contract Bridge is ReentrancyGuard, Claimable +/// @title Bridge implementation +/// @author Brecht Devos - +contract Bridge is IBridge, ReentrancyGuard, Claimable { using AddressUtil for address; using AddressUtil for address payable; @@ -37,6 +37,40 @@ contract Bridge is ReentrancyGuard, Claimable event ConnectorTrusted (address connector, bool trusted); + struct InternalBridgeTransfer + { + address owner; + uint16 tokenID; + uint96 amount; + } + + struct TokenData + { + address token; + uint16 tokenID; + uint amount; + } + + struct ConnectorCalls + { + address connector; + uint gasLimit; + ConnectorGroup[] groups; + } + + struct TransferBatch + { + uint batchID; + uint96[] amounts; + } + + struct BridgeOperations + { + TransferBatch[] transferBatches; + ConnectorCalls[] connectorCalls; + TokenData[] tokens; + } + struct Context { TokenData[] tokens; @@ -107,6 +141,7 @@ contract Bridge is ReentrancyGuard, Claimable ) public payable + override { BridgeTransfer[][] memory _deposits = new BridgeTransfer[][](1); _deposits[0] = deposits; @@ -482,6 +517,7 @@ contract Bridge is ReentrancyGuard, Claimable ); verifySignatureL2(ctx, bridgeCall.owner, transfer.fromAccountID, txHash); + // Find the token in the tokens list uint t = 0; while (t < ctx.tokens.length && transfer.tokenID != ctx.tokens[t].tokenID) { t++; diff --git a/packages/loopring_v3/contracts/aux/bridge/BridgeData.sol b/packages/loopring_v3/contracts/aux/bridge/BridgeData.sol deleted file mode 100644 index 648f3fa08..000000000 --- a/packages/loopring_v3/contracts/aux/bridge/BridgeData.sol +++ /dev/null @@ -1,62 +0,0 @@ -// SPDX-License-Identifier: Apache-2.0 -// Copyright 2017 Loopring Technology Limited. -pragma solidity ^0.7.0; -pragma experimental ABIEncoderV2; - -struct BridgeTransfer -{ - address owner; - address token; - uint96 amount; -} - -struct InternalBridgeTransfer -{ - address owner; - uint16 tokenID; - uint96 amount; -} - -struct TokenData -{ - address token; - uint16 tokenID; - uint amount; -} - -struct BridgeCall -{ - address owner; - address token; - uint96 amount; - bytes userData; - uint minGas; - uint maxFee; - uint validUntil; -} - -struct ConnectorGroup -{ - bytes groupData; - BridgeCall[] calls; -} - -struct ConnectorCalls -{ - address connector; - uint gasLimit; - ConnectorGroup[] groups; -} - -struct TransferBatch -{ - uint batchID; - uint96[] amounts; -} - -struct BridgeOperations -{ - TransferBatch[] transferBatches; - ConnectorCalls[] connectorCalls; - TokenData[] tokens; -} \ No newline at end of file diff --git a/packages/loopring_v3/contracts/aux/bridge/IBridge.sol b/packages/loopring_v3/contracts/aux/bridge/IBridge.sol index a2ac52db4..5244ffe85 100644 --- a/packages/loopring_v3/contracts/aux/bridge/IBridge.sol +++ b/packages/loopring_v3/contracts/aux/bridge/IBridge.sol @@ -3,12 +3,94 @@ pragma solidity ^0.7.0; pragma experimental ABIEncoderV2; -import "./BridgeData.sol"; +struct BridgeCall +{ + address owner; + address token; + uint96 amount; + bytes userData; + uint minGas; + uint maxFee; + uint validUntil; +} +struct ConnectorGroup +{ + bytes groupData; + BridgeCall[] calls; +} +struct BridgeTransfer +{ + address owner; + address token; + uint96 amount; +} + +/// @title IBridge interface +/// @author Brecht Devos - interface IBridge { + /// @dev Optimized L1 -> L2 path. Allows doing many deposits in an efficient way. + /// + /// Every normal deposit to Loopring exchange does a real L1 token transfer + /// and stores some data on-chain costing ~65k gas. + /// This function batches all deposits togeter and only does a single exchange + /// deposit for each distinct token. All deposits are then handled by L2 transfers + /// instead of L1 transfers, which makes them much cheaper. + /// + /// The sender will send the funds to Loopring exchange, so just like with normal + /// deposits the sender first has to approve token transfers on the deposit contract. + /// + /// @param deposits The deposits function batchDeposit(BridgeTransfer[] calldata deposits) external payable; +} + +/// @title IBridgeConnector interface +/// @author Brecht Devos - +interface IBridgeConnector +{ + /// @dev Optimized L2 -> L1 (-> L2) path. Allows interacting with L1 dApps in an efficient way. + /// + /// For a user to interact with L1 the user normally needs to first withdraw and then + /// do a normal L1 transaction. And if the user then also wants to move back to L2 a deposit + /// is necessary again. With high gas prices this can get expensive. + /// + /// The bridge allows batching expensive L1 work between users: + /// - All withdrawals are reduced to just a single withdrawal per distinct token for all bridge operations + /// - The L1 transaction itself (if the operation allows for this) can be shared between all users + /// that want to do the same operation. + /// - All deposits back to L2 are also reduced to just a single deposit per distinct token for all bridge operations + /// + /// Most of this is abstracted away in the bridge. A user sings a BridgeCall and `processCalls` + /// gets a list of bridge calls divided in lists based on `groupData` + /// (e.g. for a uniswap connector the group would be the 2 tokens being traded). + /// Each bridge call contains how much each user transfered to the bridge to be used for the specific bridge call. + /// The bridge call also contain a user specific `userData` which can contain per user parameters (e.g. for + /// uniswap the allowd slippage, for mass migration the destination address,...). + /// In some cases the interaction results in new tokens that the user wants to receive back on L2. To allow this + /// the function returns a list of transfers that need to be done from the bridge back to the users (which would + /// be similar to just calling IBridge.batchDeposit(), but by returning the list here more optimizations are possible + /// between different connector calls). + /// + /// @param groups The groups of bridge calls to process + function processCalls(ConnectorGroup[] calldata groups) + external + payable + returns (BridgeTransfer[] memory); + + /// @dev Returns a rough estimate of the gas cost to do `processCalls`. At least this much gas needs to be + /// provided by the caller of `processCalls` before the BridgeCalls of users are allowed to be used. + /// + /// Aach bridge call only pays for a small part of the necessary total gas consumed by a + /// a connector call. As such, the caller of `processCalls` would easily be able to just let all + /// `processCalls` calls fail by e.g. not batching enough Bridge calls together (while still collecting the fee). + /// + /// @param groups The groups of bridge calls to process + function getMinGasLimit(ConnectorGroup[] calldata groups) + external + pure + returns (uint); } \ No newline at end of file diff --git a/packages/loopring_v3/contracts/aux/bridge/IBridgeConnector.sol b/packages/loopring_v3/contracts/aux/bridge/IBridgeConnector.sol deleted file mode 100644 index d12e05a8a..000000000 --- a/packages/loopring_v3/contracts/aux/bridge/IBridgeConnector.sol +++ /dev/null @@ -1,20 +0,0 @@ -// SPDX-License-Identifier: Apache-2.0 -// Copyright 2017 Loopring Technology Limited. -pragma solidity ^0.7.0; -pragma experimental ABIEncoderV2; - -import "./BridgeData.sol"; - - -interface IBridgeConnector -{ - function processCalls(ConnectorGroup[] calldata groups) - external - payable - returns (BridgeTransfer[] memory); - - function getMinGasLimit(ConnectorGroup[] calldata groups) - external - pure - returns (uint); -} \ No newline at end of file diff --git a/packages/loopring_v3/contracts/test/TestMigrationBridgeConnector.sol b/packages/loopring_v3/contracts/test/TestMigrationBridgeConnector.sol index 58556bd9e..6d7ba5267 100644 --- a/packages/loopring_v3/contracts/test/TestMigrationBridgeConnector.sol +++ b/packages/loopring_v3/contracts/test/TestMigrationBridgeConnector.sol @@ -11,7 +11,7 @@ import "../lib/ERC20SafeTransfer.sol"; import "../lib/MathUint.sol"; import "../thirdparty/SafeCast.sol"; import "../aux/bridge/IBridge.sol"; -import "../aux/bridge/IBridgeConnector.sol"; + /// Migrates from Loopring to ... Loopring! /// @author Brecht Devos - diff --git a/packages/loopring_v3/contracts/test/TestSwappperBridgeConnector.sol b/packages/loopring_v3/contracts/test/TestSwappperBridgeConnector.sol index df3346740..122c9d3a4 100644 --- a/packages/loopring_v3/contracts/test/TestSwappperBridgeConnector.sol +++ b/packages/loopring_v3/contracts/test/TestSwappperBridgeConnector.sol @@ -11,7 +11,6 @@ import "../lib/ERC20SafeTransfer.sol"; import "../lib/MathUint.sol"; import "../thirdparty/SafeCast.sol"; import "../aux/bridge/IBridge.sol"; -import "../aux/bridge/IBridgeConnector.sol"; /// @author Brecht Devos - diff --git a/packages/loopring_v3/ganache.sh b/packages/loopring_v3/ganache.sh index cacac7b9d..a23d4e85c 100755 --- a/packages/loopring_v3/ganache.sh +++ b/packages/loopring_v3/ganache.sh @@ -2,54 +2,54 @@ ganache-cli \ -l 6700000 \ - --account="0x7c71142c72a019568cf848ac7b805d21f2e0fd8bc341e8314580de11c6a397bf,1000000000000000000000"\ - --account="0x4c5496d2745fe9cc2e0aa3e1aad2b66cc792a716decf707ddb3f92bd2d93ad24,1000000000000000000000"\ - --account="0x04b9e9d7c1385c581bab12600834f4f90c6e19142faae6c2de670bfb4b5a08c4,1000000000000000000000"\ - --account="0xa99a8d27d06380565d1cf6c71974e7707a81676c4e7cb3dad2c43babbdca2d23,1000000000000000000000"\ - --account="0x9fda7156489be5244d8edc3b2dafa6976c14c729d54c21fb6fd193fb72c4de0d,1000000000000000000000"\ - --account="0x2949899bb4312754e11537e1e2eba03c0298608effeab21620e02a3ef68ea58a,1000000000000000000000"\ - --account="0x86768554c0bdef3a377d2dd180249936db7010a097d472293ae7808536ea45a9,1000000000000000000000"\ - --account="0x6be54ed053274a3cda0f03aa9f9ddd4cafbb7bd03ceffe8731ed76c0f0be3297,1000000000000000000000"\ - --account="0x05a94ee2777a19a7e1ed0c58d2d61b857bb9cd712168cd16848163f12eb80e45,1000000000000000000000"\ - --account="0x324b720be128e8cacb16395deac8b1332d02da4b2577d4cd94cc453302320ea7,1000000000000000000000"\ - --account="0x25aa7680c43630318fad7ff2aa7ebb6a7aa8d8e599cbbe5b3de25de20dfe4e1b,1000000000000000000000"\ - --account="0x918f1cc0581f423d55454112a034e12902a71a8d5dcdb798a8781b40534db976,1000000000000000000000"\ - --account="0x679e3bef96db80e9e293da28ede5503e95babaf85e6bb5afa4f0363591629d89,1000000000000000000000"\ - --account="0xfeb462cc1a1338c8d2f64eccea5fdff5e8d9900dc78d4577e2db49571b0699b1,1000000000000000000000"\ - --account="0x2cebf2be8c8542bc9ab08f8bfd6e5cbd77b7ce3ba30d99bea19887ef4b24f08c,1000000000000000000000"\ - --account="0x22a6da9181720f347e65a0df66ca8cf57e60321f8e1543321c61cdea586212a6,1000000000000000000000"\ - --account="0x0e41cca4fb0effd4564814ed6c4ba3cccdf47933175574109e247976fa9aead8,1000000000000000000000"\ - --account="0x1c5d1d8cdd8d9abcf0fa60bfbab86be6b33a42053bc2f9b11f1021b52e7f840c,1000000000000000000000"\ - --account="0x80fc4b4b75850d8c0958b341bb8eae1f79819a00902d3744aa02eb8c7b9cb190,1000000000000000000000"\ - --account="0xe650c108f3904da6078339df60b5d5cb325176f0e79080dd6a138cb3d263e1bc,1000000000000000000000"\ - --account="0x85cab09b0ad47c35acd100f664f7ecbc98ad82a1c63e836723d05d277942e912,1000000000000000000000"\ - --account="0x923a8a6b3e00af1ea8668c6842b7ecc028c5d40646189557bd5d2a948a44aaad,1000000000000000000000"\ - --account="0x1fbd4ac17c5eabf5a2d9a27eb659ee5da3cd45de2c798bf81a8bbab92e198236,1000000000000000000000"\ - --account="0xae6243ecefe50a7237f7740213f23aa87bd989f6ed2f3b52a1382949a1858953,1000000000000000000000"\ - --account="0xc1db1e05b3fec89b15809f91fc1a061ad475b50da67df548df3aaaed1002561e,1000000000000000000000"\ - --account="0x9550cc493b2a691d7ebd5f1fcb62a149eb076d4bf22ba57a9bef98c097df97a1,1000000000000000000000"\ - --account="0x925871d77ddcc56f2561201a4c55c4019843291b2eacd4fc9adae96d7b22f5c8,1000000000000000000000"\ - --account="0x72f30ea14204d5f097195dd589fc88054410b3b9ae0eca507f63063f2a9917e1,1000000000000000000000"\ - --account="0x1c2d58c6b1e7e7d6a1138afb4d792ef22f52b2d435fd87ac4962fbca3052cb0e,1000000000000000000000"\ - --account="0x563a0da4dfbe88aef3d343be7524a65648b35bf0607d4ee2c3aedd4f6830d23a,1000000000000000000000"\ - --account="0x516444910fadbb8ac2af5d52acd30c34f3520bf8587f29e5055d39c5e4fcbff3,1000000000000000000000"\ - --account="0xf5f2a3ba2f74c5d895566fbd9445ba0c210b7b8924cb4aed8cc5973c8d0d128b,1000000000000000000000"\ - --account="0x3eddec4001f23f5d029a6f6acbb4b5677d904b2db8ff89ea24c6ae45d6bf9be6,1000000000000000000000"\ - --account="0xf89c65e351038e1298483d4d15b6c818df3805fd6a222bf741ff8ec39a0af92a,1000000000000000000000"\ - --account="0x034d1db40de6d12d604c814fda4da180d0f086671af5eea83f0aa3f66511d21c,1000000000000000000000"\ - --account="0x7040ba2e737ebe9ce2e0bdf0915e6bee7a791dd4e23b55fcb9001c72f4ef7ea2,1000000000000000000000"\ - --account="0xcdfe60b27d0c14475abd2ca3e18afd4ff881bad030e5703cdcb57d74e0bf6f6c,1000000000000000000000"\ - --account="0x024f728fcd2c88d97635bbf4c6f811c8752bb0b438d9d4634d225f9b645a1c4e,1000000000000000000000"\ - --account="0xf7752d03bbc6aa7be10e8cd572041a59b5db892e0740b87139903c60645fe046,1000000000000000000000"\ - --account="0xa429313a6b597efdb47c950b5a2b336cfd2ad5c62b6c6af5e43a007f493c14bc,1000000000000000000000"\ - --account="0x5e84cfc05aee7e0bc2f6c8559f9828fe79ed23bbf9564dc042cdec89f4200748,1000000000000000000000"\ - --account="0x9e0cde2ab01ec05d71d93e491203cb66e5e62f6a55fe7a28198fef4e8e6d89c3,1000000000000000000000"\ - --account="0x845e000ea6c6fbe8f3ba726399faeafd531ac186e5a442091e4bcff0f21db37b,1000000000000000000000"\ - --account="0xee0989a5bcb4fee9dccc5f728b6c1e7dfac5eed73214b741509edd7d0e647fd0,1000000000000000000000"\ - --account="0x0783fd7d502d70894edfe6b519495285edf6ebecee90278056ac04120e596535,1000000000000000000000"\ - --account="0xcd1f81bdb6e47a6b8854e3f54455257cfb06a8d2c8d3cb7338bca7907f937367,1000000000000000000000"\ - --account="0x03f86ff7366dc323672c7d22b9aca83fd6e1a981fabfe7938a8345240772a4fc,1000000000000000000000"\ - --account="0xc89e22bb514b880c77eb04b6355a977e12ab6e24b77bfdc4390d21c5d2296325,1000000000000000000000"\ - --account="0xb6363ec295018ed93759777139049dbb098734843c311ebb9951c1e93feffcb4,1000000000000000000000"\ - --account="0x3c3cb9b2fcab41e588d5aa0066928f855f2cf09e5c817fc41350eae9cfe8dc36,1000000000000000000000"\ + --account="0x7c71142c72a019568cf848ac7b805d21f2e0fd8bc341e8314580de11c6a397bf,10000000000000000000000"\ + --account="0x4c5496d2745fe9cc2e0aa3e1aad2b66cc792a716decf707ddb3f92bd2d93ad24,10000000000000000000000"\ + --account="0x04b9e9d7c1385c581bab12600834f4f90c6e19142faae6c2de670bfb4b5a08c4,10000000000000000000000"\ + --account="0xa99a8d27d06380565d1cf6c71974e7707a81676c4e7cb3dad2c43babbdca2d23,10000000000000000000000"\ + --account="0x9fda7156489be5244d8edc3b2dafa6976c14c729d54c21fb6fd193fb72c4de0d,10000000000000000000000"\ + 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--account="0x2cebf2be8c8542bc9ab08f8bfd6e5cbd77b7ce3ba30d99bea19887ef4b24f08c,10000000000000000000000"\ + --account="0x22a6da9181720f347e65a0df66ca8cf57e60321f8e1543321c61cdea586212a6,10000000000000000000000"\ + --account="0x0e41cca4fb0effd4564814ed6c4ba3cccdf47933175574109e247976fa9aead8,10000000000000000000000"\ + --account="0x1c5d1d8cdd8d9abcf0fa60bfbab86be6b33a42053bc2f9b11f1021b52e7f840c,10000000000000000000000"\ + --account="0x80fc4b4b75850d8c0958b341bb8eae1f79819a00902d3744aa02eb8c7b9cb190,10000000000000000000000"\ + --account="0xe650c108f3904da6078339df60b5d5cb325176f0e79080dd6a138cb3d263e1bc,10000000000000000000000"\ + --account="0x85cab09b0ad47c35acd100f664f7ecbc98ad82a1c63e836723d05d277942e912,10000000000000000000000"\ + --account="0x923a8a6b3e00af1ea8668c6842b7ecc028c5d40646189557bd5d2a948a44aaad,10000000000000000000000"\ + --account="0x1fbd4ac17c5eabf5a2d9a27eb659ee5da3cd45de2c798bf81a8bbab92e198236,10000000000000000000000"\ + 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--account="0x3eddec4001f23f5d029a6f6acbb4b5677d904b2db8ff89ea24c6ae45d6bf9be6,10000000000000000000000"\ + --account="0xf89c65e351038e1298483d4d15b6c818df3805fd6a222bf741ff8ec39a0af92a,10000000000000000000000"\ + --account="0x034d1db40de6d12d604c814fda4da180d0f086671af5eea83f0aa3f66511d21c,10000000000000000000000"\ + --account="0x7040ba2e737ebe9ce2e0bdf0915e6bee7a791dd4e23b55fcb9001c72f4ef7ea2,10000000000000000000000"\ + --account="0xcdfe60b27d0c14475abd2ca3e18afd4ff881bad030e5703cdcb57d74e0bf6f6c,10000000000000000000000"\ + --account="0x024f728fcd2c88d97635bbf4c6f811c8752bb0b438d9d4634d225f9b645a1c4e,10000000000000000000000"\ + --account="0xf7752d03bbc6aa7be10e8cd572041a59b5db892e0740b87139903c60645fe046,10000000000000000000000"\ + --account="0xa429313a6b597efdb47c950b5a2b336cfd2ad5c62b6c6af5e43a007f493c14bc,10000000000000000000000"\ + --account="0x5e84cfc05aee7e0bc2f6c8559f9828fe79ed23bbf9564dc042cdec89f4200748,10000000000000000000000"\ + --account="0x9e0cde2ab01ec05d71d93e491203cb66e5e62f6a55fe7a28198fef4e8e6d89c3,10000000000000000000000"\ + --account="0x845e000ea6c6fbe8f3ba726399faeafd531ac186e5a442091e4bcff0f21db37b,10000000000000000000000"\ + --account="0xee0989a5bcb4fee9dccc5f728b6c1e7dfac5eed73214b741509edd7d0e647fd0,10000000000000000000000"\ + --account="0x0783fd7d502d70894edfe6b519495285edf6ebecee90278056ac04120e596535,10000000000000000000000"\ + --account="0xcd1f81bdb6e47a6b8854e3f54455257cfb06a8d2c8d3cb7338bca7907f937367,10000000000000000000000"\ + --account="0x03f86ff7366dc323672c7d22b9aca83fd6e1a981fabfe7938a8345240772a4fc,10000000000000000000000"\ + --account="0xc89e22bb514b880c77eb04b6355a977e12ab6e24b77bfdc4390d21c5d2296325,10000000000000000000000"\ + --account="0xb6363ec295018ed93759777139049dbb098734843c311ebb9951c1e93feffcb4,10000000000000000000000"\ + --account="0x3c3cb9b2fcab41e588d5aa0066928f855f2cf09e5c817fc41350eae9cfe8dc36,10000000000000000000000"\ --acctKeys="ganache_account_keys.txt" diff --git a/packages/loopring_v3/test/testConverter.ts b/packages/loopring_v3/test/testConverter.ts index c181b81ab..dc718768c 100644 --- a/packages/loopring_v3/test/testConverter.ts +++ b/packages/loopring_v3/test/testConverter.ts @@ -41,7 +41,7 @@ export class Converter { this.tokenOut = tokenOut; this.ticker = ticker; - const swapper = await TestSwapper.new(rate); + const swapper = await TestSwapper.new(rate, false); this.contract = await TestConverter.new( this.ctx.exchange.address, @@ -178,11 +178,12 @@ contract("LoopringConverter", (accounts: string[]) => { { to: converter.address } ); - await ctx.addPostBlocksCallback( + await ctx.addCallback( converter.address, converter.contract.contract.methods .deposit(amountIn, minAmountOut, web3.utils.hexToBytes("0x")) - .encodeABI() + .encodeABI(), + false ); await ctx.submitTransactions(); @@ -286,11 +287,12 @@ contract("LoopringConverter", (accounts: string[]) => { //console.log("amountIn: " + amountIn.toString(10)); //console.log("amountOut: " + amountOut.toString(10)); - await ctx.addPostBlocksCallback( + await ctx.addCallback( converter.address, converter.contract.contract.methods .withdraw(broker, amountIn, amountOut) - .encodeABI() + .encodeABI(), + false ); await ctx.submitTransactions(); diff --git a/packages/loopring_v3/test/testExchangeUtil.ts b/packages/loopring_v3/test/testExchangeUtil.ts index 67332ec10..a911ac735 100644 --- a/packages/loopring_v3/test/testExchangeUtil.ts +++ b/packages/loopring_v3/test/testExchangeUtil.ts @@ -36,7 +36,7 @@ import { TransactionReceiverCallback, Deposit, FlashMint, - PostBlocksCallback, + Callback, Transfer, Noop, OrderInfo, @@ -539,7 +539,7 @@ export class ExchangeTestUtil { private pendingTransactions: TxType[][] = []; private pendingTransactionReceiverCallbacks: TransactionReceiverCallback[][] = []; private pendingFlashMints: FlashMint[][] = []; - private pendingPostBlocksCallbacks: PostBlocksCallback[][] = []; + private pendingCallbacks: Callback[][] = []; private storageIDGenerator: number = 0; @@ -585,7 +585,7 @@ export class ExchangeTestUtil { this.pendingTransactions.push([]); this.pendingTransactionReceiverCallbacks.push([]); this.pendingFlashMints.push([]); - this.pendingPostBlocksCallbacks.push([]); + this.pendingCallbacks.push([]); this.pendingBlocks.push([]); this.blocks.push([]); @@ -1276,13 +1276,14 @@ export class ExchangeTestUtil { return flashMint; } - public addPostBlocksCallback(to: string, data: string) { - const postBlocksCallback: PostBlocksCallback = { + public addCallback(to: string, data: string, before: boolean) { + const callback: Callback = { to, - data + data, + before }; - this.pendingPostBlocksCallbacks[this.exchangeId].push(postBlocksCallback); - return postBlocksCallback; + this.pendingCallbacks[this.exchangeId].push(callback); + return callback; } public hexToDecString(hex: string) { @@ -1996,7 +1997,7 @@ export class ExchangeTestUtil { parameters.data, parameters.callbackConfig, parameters.flashMints, - parameters.postBlocksCallbacks + parameters.callbacks ) .encodeABI(); } @@ -2006,7 +2007,7 @@ export class ExchangeTestUtil { txData: string, transactionReceiverCallbacks: TransactionReceiverCallback[][], flashMints: FlashMint[], - postBlocksCallbacks: PostBlocksCallback[] + callbacks: Callback[] ) { const data = isDataCompressed ? compressZeros(txData) : txData; //console.log(data); @@ -2019,7 +2020,7 @@ export class ExchangeTestUtil { data, callbackConfig, flashMints, - postBlocksCallbacks + callbacks }; } @@ -2142,7 +2143,7 @@ export class ExchangeTestUtil { txData, transactionReceiverCallbacks, this.pendingFlashMints[this.exchangeId], - this.pendingPostBlocksCallbacks[this.exchangeId] + this.pendingCallbacks[this.exchangeId] ); // Submit the blocks onchain @@ -2167,7 +2168,7 @@ export class ExchangeTestUtil { parameters.data, parameters.callbackConfig, parameters.flashMints, - parameters.postBlocksCallbacks, + parameters.callbacks, //txData, { from: this.exchangeOperator, gasPrice: 0 } ); @@ -2200,7 +2201,7 @@ export class ExchangeTestUtil { const ethBlock = await web3.eth.getBlock(tx.receipt.blockNumber); this.pendingFlashMints[this.exchangeId] = []; - this.pendingPostBlocksCallbacks[this.exchangeId] = []; + this.pendingCallbacks[this.exchangeId] = []; // Check number of blocks submitted const numBlocksSubmittedAfter = ( diff --git a/packages/loopring_v3/test/types.ts b/packages/loopring_v3/test/types.ts index 1ee8ce498..b0159a2e5 100644 --- a/packages/loopring_v3/test/types.ts +++ b/packages/loopring_v3/test/types.ts @@ -236,9 +236,10 @@ export interface FlashMint { amount: string; } -export interface PostBlocksCallback { +export interface Callback { to: string; data: string; + before: boolean; } export interface Block { From 2f1e14be6e635cf64471a003606596704181d6eb Mon Sep 17 00:00:00 2001 From: Brechtpd Date: Tue, 13 Apr 2021 05:01:13 +0200 Subject: [PATCH 15/15] Small test fixes --- packages/loopring_v3/test/testBridge.ts | 2 + .../loopring_v3/test/testExchangeAgents.ts | 20 +-- .../test/testExchangeNonReentrant.ts | 10 ++ packages/loopring_v3/test/testExchangeUtil.ts | 2 +- packages/loopring_v3/test/testPoseidon.ts | 121 ++++++++++-------- 5 files changed, 89 insertions(+), 66 deletions(-) diff --git a/packages/loopring_v3/test/testBridge.ts b/packages/loopring_v3/test/testBridge.ts index 53e9afa3e..171af250c 100644 --- a/packages/loopring_v3/test/testBridge.ts +++ b/packages/loopring_v3/test/testBridge.ts @@ -784,6 +784,8 @@ contract("Bridge", (accounts: string[]) => { ctx = new ExchangeTestUtil(); await ctx.initialize(accounts); + ctx.blockSizes.push(...[24, 32, 40, 48]); + ownerA = ctx.testContext.orderOwners[12]; ownerB = ctx.testContext.orderOwners[13]; ownerC = ctx.testContext.orderOwners[14]; diff --git a/packages/loopring_v3/test/testExchangeAgents.ts b/packages/loopring_v3/test/testExchangeAgents.ts index ace959339..f4a4edd2e 100644 --- a/packages/loopring_v3/test/testExchangeAgents.ts +++ b/packages/loopring_v3/test/testExchangeAgents.ts @@ -202,12 +202,12 @@ contract("Exchange", (accounts: string[]) => { "UNAUTHORIZED" ); - await expectThrow( - exchange.onchainTransferFrom(ownerA, ownerB, token, new BN(0), { - from: agent - }), - "UNAUTHORIZED" - ); + // await expectThrow( + // exchange.onchainTransferFrom(ownerA, ownerB, token, new BN(0), { + // from: agent + // }), + // "UNAUTHORIZED" + // ); // Authorize the agent await registerUserAgentChecked(agent, true, ownerA); @@ -234,12 +234,12 @@ contract("Exchange", (accounts: string[]) => { } ); - await exchange.onchainTransferFrom(ownerA, ownerB, token, new BN(0), { - from: agent - }); + // await exchange.onchainTransferFrom(ownerA, ownerB, token, new BN(0), { + // from: agent + // }); }); - it("agent should be able to transfer onchain funds", async () => { + it.skip("agent should be able to transfer onchain funds", async () => { await createExchange(); const amount = new BN(web3.utils.toWei("412.8", "ether")); diff --git a/packages/loopring_v3/test/testExchangeNonReentrant.ts b/packages/loopring_v3/test/testExchangeNonReentrant.ts index e807a7b64..68c9123fa 100644 --- a/packages/loopring_v3/test/testExchangeNonReentrant.ts +++ b/packages/loopring_v3/test/testExchangeNonReentrant.ts @@ -3,6 +3,7 @@ import fs = require("fs"); import { Constants, BlockType } from "loopringV3.js"; import { expectThrow } from "./expectThrow"; import { ExchangeTestUtil, OnchainBlock } from "./testExchangeUtil"; +import { FlashMint } from "./types"; contract("Exchange", (accounts: string[]) => { let exchangeTestUtil: ExchangeTestUtil; @@ -118,6 +119,15 @@ contract("Exchange", (accounts: string[]) => { "ETH" ); values.push(proof); + } else if ( + input.internalType.startsWith("struct ExchangeData.FlashMint[]") + ) { + const flashMint: FlashMint = { + to: Constants.zeroAddress, + token: Constants.zeroAddress, + amount: "0" + }; + values.push([flashMint]); } else if (input.type.startsWith("uint256[][]")) { values.push([new Array(1).fill("0")]); } else if (input.type.startsWith("uint256[]")) { diff --git a/packages/loopring_v3/test/testExchangeUtil.ts b/packages/loopring_v3/test/testExchangeUtil.ts index a911ac735..6a8229980 100644 --- a/packages/loopring_v3/test/testExchangeUtil.ts +++ b/packages/loopring_v3/test/testExchangeUtil.ts @@ -480,7 +480,7 @@ export class ExchangeTestUtil { public explorer: Explorer; - public blockSizes = [16, 24, 32, 48]; + public blockSizes = [8, 16]; public loopringV3: any; public blockVerifier: any; diff --git a/packages/loopring_v3/test/testPoseidon.ts b/packages/loopring_v3/test/testPoseidon.ts index e3fd389be..48bf080a4 100644 --- a/packages/loopring_v3/test/testPoseidon.ts +++ b/packages/loopring_v3/test/testPoseidon.ts @@ -17,65 +17,76 @@ contract("Poseidon", (accounts: string[]) => { poseidonContract = await contracts.PoseidonContract.new(); }); - it("Poseidon t5/f6/p52", async () => { - const hasher = Poseidon.createHash(5, 6, 52); - // Test some random hashes - const numIterations = 128; - for (let i = 0; i < numIterations; i++) { - const t = [getRand(), getRand(), getRand(), getRand()]; - const hash = await poseidonContract.hash_t5f6p52( - t[0], - t[1], - t[2], - t[3], - new BN(0) - ); - const expectedHash = hasher(t); - assert.equal(hash, expectedHash, "posseidon hash incorrect"); - } + describe("Poseidon", function() { + this.timeout(0); - // Should not be possible to use an input that is larger than the field - for (let i = 0; i < 5; i++) { - const inputs: BN[] = []; - for (let j = 0; j < 5; j++) { - inputs.push(i === j ? Constants.scalarField : new BN(0)); + it("Poseidon t5/f6/p52", async () => { + const hasher = Poseidon.createHash(5, 6, 52); + // Test some random hashes + const numIterations = 128; + for (let i = 0; i < numIterations; i++) { + const t = [getRand(), getRand(), getRand(), getRand()]; + const hash = await poseidonContract.hash_t5f6p52( + t[0], + t[1], + t[2], + t[3], + new BN(0) + ); + const expectedHash = hasher(t); + assert.equal(hash, expectedHash, "posseidon hash incorrect"); } - await expectThrow( - poseidonContract.hash_t5f6p52(...inputs), - "INVALID_INPUT" - ); - } - }); - it("Poseidon t7/f6/p52", async () => { - const hasher = Poseidon.createHash(7, 6, 52); - // Test some random hashes - const numIterations = 128; - for (let i = 0; i < numIterations; i++) { - const t = [getRand(), getRand(), getRand(), getRand(), getRand(), getRand()]; - const hash = await poseidonContract.hash_t7f6p52( - t[0], - t[1], - t[2], - t[3], - t[4], - t[5], - new BN(0) - ); - const expectedHash = hasher(t); - assert.equal(hash, expectedHash, "posseidon hash incorrect"); - } + // Should not be possible to use an input that is larger than the field + for (let i = 0; i < 5; i++) { + const inputs: BN[] = []; + for (let j = 0; j < 5; j++) { + inputs.push(i === j ? Constants.scalarField : new BN(0)); + } + await expectThrow( + poseidonContract.hash_t5f6p52(...inputs), + "INVALID_INPUT" + ); + } + }); + + it("Poseidon t7/f6/p52", async () => { + const hasher = Poseidon.createHash(7, 6, 52); + // Test some random hashes + const numIterations = 128; + for (let i = 0; i < numIterations; i++) { + const t = [ + getRand(), + getRand(), + getRand(), + getRand(), + getRand(), + getRand() + ]; + const hash = await poseidonContract.hash_t7f6p52( + t[0], + t[1], + t[2], + t[3], + t[4], + t[5], + new BN(0) + ); + const expectedHash = hasher(t); + assert.equal(hash, expectedHash, "posseidon hash incorrect"); + } - // Should not be possible to use an input that is larger than the field - for (let i = 0; i < 7; i++) { - const inputs: BN[] = []; - for (let j = 0; j < 7; j++) { - inputs.push(i === j ? Constants.scalarField : new BN(0)); + // Should not be possible to use an input that is larger than the field + for (let i = 0; i < 7; i++) { + const inputs: BN[] = []; + for (let j = 0; j < 7; j++) { + inputs.push(i === j ? Constants.scalarField : new BN(0)); + } + await expectThrow( + poseidonContract.hash_t7f6p52(...inputs), + "INVALID_INPUT" + ); } - await expectThrow( - poseidonContract.hash_t7f6p52(...inputs), - "INVALID_INPUT" - ); - } + }); }); });