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From "Damiano Albani (JIRA)" <j...@apache.org>
Subject [jira] [Created] (COMPRESS-429) Expose whether ZIP entry name & comment come from Unicode extra field
Date Fri, 10 Nov 2017 15:45:01 GMT
Damiano Albani created COMPRESS-429:
---------------------------------------

             Summary: Expose whether ZIP entry name & comment come from Unicode extra
field
                 Key: COMPRESS-429
                 URL: https://issues.apache.org/jira/browse/COMPRESS-429
             Project: Commons Compress
          Issue Type: Improvement
            Reporter: Damiano Albani
            Priority: Minor


It is known fact that detecting the encoding of the name/comment of ZIP entries is a messy
process. And that the general purpose bit 11 is often unreliable.
Only the so-called Unicode extra field (if present) can be trusted to reliably determine a
ZIP entry name & comment, as far as I understand.

But the current API of Commons Compress doesn't (easily) expose in which situation the ZIP
archive reader is.
That's why I propose to add a couple of new getter/setter-exposed fields to {{ZipArchiveEntry}},
e.g.:

{noformat}
boolean hasUnicodeName
boolean hasUnicodeComment
{noformat}

This way it can be easily determined if the value returned by {{ZipArchiveEntry::getName}}
or {{ZipArchiveEntry::getComment}} can be trusted. Or if it needs some "character encoding
sniffing" of sorts.

What do you think?



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