Increase buffer size for mime type sniffing
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Key: TIKA-366
URL: https://issues.apache.org/jira/browse/TIKA-366
Project: Tika
Issue Type: Improvement
Components: mime
Affects Versions: 0.5
Environment: My local MacBook pro laptop.
Reporter: Chris A. Mattmann
Assignee: Chris A. Mattmann
Fix For: 0.6
While working on TIKA-357 to address a similar problem for charset detection, I
found an issue with mime identification having to do with the same general
problem. Tika right now only deals with the first MimeTypes#getMinLength()
bytes of a magic header to do the sniffing of mime type. With the example file
attached from Ken Krugler, it's clear that the current min length size of 4 *
1024 bytes isn't enough. Extending it to 8K (8 * 1024 bytes) addresses this
issue and seems to open up more opportunity for mime detection at little
overhead cost.
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