The Graph L2 bridge contest - chrisdior4's results

1.Non-library/interface files should use fixed compiler versions, not floating ones

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2.Natspec errors

There are 9 instances of this issue:

file: L1ArbitrumMessenger.sol

1.functions can be easily overriden when testing - overridden* 1.https://github.com/code-423n4/2022-10-thegraph/blob/309a188f7215fa42c745b136357702400f91b4ff/contracts/arbitrum/L1ArbitrumMessenger.sol#L32

file: L2ArbitrumMessenger.sol

2..functions can be easily overriden when testing - overridden* 2.https://github.com/code-423n4/2022-10-thegraph/blob/309a188f7215fa42c745b136357702400f91b4ff/contracts/arbitrum/L2ArbitrumMessenger.sol#L31

file: Curation.sol

3.Staking contract and will do the bookeeping - bookkeeping* 3.https://github.com/code-423n4/2022-10-thegraph/blob/309a188f7215fa42c745b136357702400f91b4ff/contracts/curation/Curation.sol#L188

4.Subgraph deployment curation poool - pool* 4.https://github.com/code-423n4/2022-10-thegraph/blob/309a188f7215fa42c745b136357702400f91b4ff/contracts/curation/Curation.sol#L360

file: GNS.sol

5.The contract implements a multicall behaviour - behavior 5.https://github.com/code-423n4/2022-10-thegraph/blob/309a188f7215fa42c745b136357702400f91b4ff/contracts/discovery/GNS.sol#L23

file: DisputeManager.sol

6.Re-entrancy - Reentrancy* 6.https://github.com/code-423n4/2022-10-thegraph/blob/309a188f7215fa42c745b136357702400f91b4ff/contracts/disputes/DisputeManager.sol#L637

7.for incorrect behaviour. - behavior* 7.https://github.com/code-423n4/2022-10-thegraph/blob/309a188f7215fa42c745b136357702400f91b4ff/contracts/disputes/DisputeManager.sol#L19

file: Staking.sol

8.private key for the allocationID adddress - address* 8.https://github.com/code-423n4/2022-10-thegraph/blob/309a188f7215fa42c745b136357702400f91b4ff/contracts/staking/Staking.sol#L1113

9.Then we call collect() to do the transfer bookeeping - bookkeeping* 9.https://github.com/code-423n4/2022-10-thegraph/blob/309a188f7215fa42c745b136357702400f91b4ff/contracts/staking/Staking.sol#L1512

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3.Constants should be named in all caps

There are 2 instances of this issue:

file: BancorFormula.sol

1.uint16 public constant version = 6; 1.https://github.com/code-423n4/2022-10-thegraph/blob/309a188f7215fa42c745b136357702400f91b4ff/contracts/bancor/BancorFormula.sol#L10

file: GNS.sol

2.uint32 private constant defaultReserveRatio = 1000000; 2.https://github.com/code-423n4/2022-10-thegraph/blob/309a188f7215fa42c745b136357702400f91b4ff/contracts/discovery/GNS.sol#L37

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4.EVENT IS MISSING INDEXED FIELDS

Each event should use three indexed fields if there are three or more fields

There are 2instances of this issue: 
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file: IBridge.sol

1. event MessageDelivered( uint256 indexed messageIndex, bytes32 indexed beforeInboxAcc, address inbox, uint8 kind, address sender, bytes32 messageDataHash ); 1.https://github.com/code-423n4/2022-10-thegraph/blob/309a188f7215fa42c745b136357702400f91b4ff/contracts/arbitrum/IBridge.sol#L29

2.event BridgeCallTriggered( address indexed outbox, address indexed destAddr, uint256 amount, bytes data ); 2.https://github.com/code-423n4/2022-10-thegraph/blob/309a188f7215fa42c745b136357702400f91b4ff/contracts/arbitrum/IBridge.sol#L38

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file: IOutbox.sol

3. event OutboxEntryCreated( uint256 indexed batchNum, uint256 outboxEntryIndex, bytes32 outputRoot, uint256 numInBatch 3.https://github.com/code-423n4/2022-10-thegraph/blob/309a188f7215fa42c745b136357702400f91b4ff/contracts/arbitrum/IOutbox.sol#L29

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5.Require() should be used instead of assert()

Prior to solidity version 0.8.0, hitting an assert consumes the remainder of the transaction’s available gas rather than returning it, as require()/revert() do. assert() should be avoided even past solidity version 0.8.0 as its documentation states that “The assert function creates an error of type Panic(uint256). … Properly functioning code should never create a Panic, not even on invalid external input. If this happens, then there is a bug in your contract which you should fix”.use require/revert

file: GraphProxy.sol

1.assert(ADMIN_SLOT == bytes32(uint256(keccak256("eip1967.proxy.admin")) - 1)); 2.assert(IMPLEMENTATION_SLOT == bytes32(uint256(keccak256("eip1967.proxy.implementation")) - 1) ); 3.assert(PENDING_IMPLEMENTATION_SLOT == bytes32(uint256(keccak256("eip1967.proxy.pendingImplementation")) - 1)

1.https://github.com/code-423n4/2022-10-thegraph/blob/309a188f7215fa42c745b136357702400f91b4ff/contracts/upgrades/GraphProxy.sol#L47 2.https://github.com/code-423n4/2022-10-thegraph/blob/309a188f7215fa42c745b136357702400f91b4ff/contracts/upgrades/GraphProxy.sol#L49 3.https://github.com/code-423n4/2022-10-thegraph/blob/309a188f7215fa42c745b136357702400f91b4ff/contracts/upgrades/GraphProxy.sol#L51

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6.THE NONREENTRANT MODIFIER SHOULD OCCUR BEFORE ALL OTHER MODIFIERS

file: L2GraphTokenGateway.sol

1.public payable override notPaused nonReentrant returns (bytes memory) { 1.https://github.com/code-423n4/2022-10-thegraph/blob/309a188f7215fa42c745b136357702400f91b4ff/contracts/l2/gateway/L2GraphTokenGateway.sol#L144

2.external payable override notPaused onlyL1Counterpart nonReentrant { 2.https://github.com/code-423n4/2022-10-thegraph/blob/309a188f7215fa42c745b136357702400f91b4ff/contracts/l2/gateway/L2GraphTokenGateway.sol#L232