phpmyadmin / phpmyadmin/phpmyadmin
Potential property access on `undefined`
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- PHP
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Description
Describe the bug
There exist lots of checks like typeof data [!=]== 'undefined' but then in both branches properties on data are accessed:
https://github.com/phpmyadmin/phpmyadmin/blob/e8087061c6aabc8d47cb4f742f2fd7fca40d0b22/js/src/makegrid.ts#L1059-L1067
Either the check is unnecessary and data is always an object or the error-case needs to handle data being undefined.
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start with the cited range in js/src/makegrid.ts around lines 1059-1067, then inspect similar typeof data checks in the surrounding frontend code. Determine whether data is guaranteed to be an object or whether both branches must safely handle undefined; done means the identified property accesses no longer contradict their guards and the relevant behavior remains covered by existing checks.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- typescript
- Domain
- frontend
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100