Replaced the N+1 query in `list_shared_links` which fetched `FileRecord` for each link. It now uses a single query with an `outerjoin` to fetch `original_filename` alongside the `SharedLink` object.
Measured a significant improvement from ~0.4547s to ~0.0579s per 1000 links.
Co-authored-by: christianlouis <361235+christianlouis@users.noreply.github.com>
- Use per-password random salt with PBKDF2-HMAC-SHA256 (stored as salt:hash)
- Increase PBKDF2 iterations to 600,000 (OWASP 2023 recommendation)
- Password for downloads now accepted via POST body (never URL query param)
- Fail download request if view count cannot be incremented (prevents bypass)
- Update tests to match new hashing format and POST password download
Co-authored-by: christianlouis <361235+christianlouis@users.noreply.github.com>
- Add SharedLink model with token, expiry, view limit, password hash
- Add migration 025_add_shared_links
- Add API endpoints: create, list, revoke (auth) + public info/download
- Add management UI at /shared-links with revoke controls
- Add public share landing page at /share/{token}
- Add Share button on file_view.html
- Add Shared Links to user dropdown in common.js
- Write 35 unit tests covering all scenarios
- Update UserGuide.md with sharing documentation
Co-authored-by: christianlouis <361235+christianlouis@users.noreply.github.com>