DatingDapp

Summary

The Like struct is defined but never utilized in the contract, leading to incomplete functionality or potential loss of intended features.

Vulnerability Details

The Like struct is defined as follows:

However, this struct is never used in the contract. Instead, the likes mapping uses a bool to track whether a user has liked another user:

This means that the additional data (e.g., timestamp) stored in the Like struct is not being utilized, and the contract is not tracking when a like occurred.

Impact

• Loss of functionality: The contract cannot track when a like occurred, which could be useful for analytics, rewards, or other features.

• Incomplete implementation: The Like struct may have been intended to store additional data, but its absence limits the contract's capabilities.

• Potential confusion: The presence of an unused struct may indicate incomplete development or a bug.

Tools Used

• Manual code review.

Recommendations

Update the contract to use the Like struct for tracking likes and update the likeUser function to store the relevant data: