[COMPRESS-316] CompressorStreamFactory doesn't handle deflate streams with a zlib header

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.9
• Fix Version/s: 1.10
• Component/s: Compressors
• Assignee: Unassigned
• Reporter: Nick Burch
• Created: 23/May/15 12:03
• Updated: 23/May/15 15:09
• Resolved: 23/May/15 15:09

Description

If you take a zlib / deflate compressed file, with the zlib header (eg the test file bla.tar.deflatez) and pass it to CompressorStreamFactory.createCompressorInputStream, it won't be detected and you'll get a CompressorException("No Compressor found for the stream signature.")

While detecting header-less zlib files is probably too tricky to manage, those with the header ought to be possible to spot and handle