Access file header attributes

[hsduk]

Hi
I'd like to read the zipfile's crc-32 attribute without decompressing as per https://en.wikipedia.org/wiki/Zip_(file_format)#File_headers
I noticed the code here says it is deprecated

jszip/lib/object.js

Line 863 in 3a39a71

crc32: function (input, crc) {

Is this possible with jszip ?

[dduponchel]

The function you link is a function used to compute the crc32 value of an input. The crc32 extracted from the zip file is here but it's not a public API.
Related to #247, exposing these informations seems a good idea.

[Mithgol]

This feature might help preventing at least one kind of a zip bomb (the kind with an extra large content).