[TIKA-2468] Improved detection of Lotus 1-2-3 and Quattro Pro spreadsheets

• Type: Improvement
• Status: Open
• Priority: Minor
• Resolution: Unresolved
• Affects Version/s: 1.16
• Component/s: mime
• Assignee: Unassigned
• Reporter: Johan van der Knijff
• Created: 18/Sep/17 11:37
• Updated: 18/Sep/17 13:56

Description

While running the tika detector on some old Quattro Pro for DOS spreadsheets, I noticed these files are identified as "application/x-123" (Lotus 1-2-3). This happens because the magic patterns for for "application/x-123" only covers the first 4 bytes, which for one of them creates a collision with the Quattro Pro for DOS magic pattern. I've created a patch which includes more specific mimetype definitions and magic patterns for both Lotus 1-2-3 and Quattro Pro. Patch is on its way!

Pull request