Zipfile signature not read about node-unzip HOT 12 OPEN

I had the same issue. Switching to node-unzip-2 fixed it for me.

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It sounds like the "block lengths" and "block types" errors might be separate issues.

I'm working with a 3.5 MB zip file. When I use the Mac OSX compression tool to create the zip (right click on a folder and click Compress), then run it through node-unzip, I get "invalid stored block lengths". When I compress the same directory using the zip command line utility, then node-unzip extracts it just fine.

Maybe the storage format has some variations that we're not accounting for. I did a hex diff of the two files. I don't know if it's helpful to a keener eye than mine:

hex-diff.png

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Actually there is a slight difference this result in an: Error: invalid block type if read through unzip. The signature itself seems to be read correctly.

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I just ran into this on a few large zip files I was parsing with node-excel. It appears the signature is being read, however - any ideas on this? I haven't been able to get it to work simply by skipping the signature.

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Ran into this same issue today with Unzip. Trace:

uncaughtException: invalid stored block lengths date=Fri Feb 07 2014 13:20:50 GMT-0600 (CST), pid=91702, uid=501, gid=20, cwd=<path>, execPath=/opt/local/bin/node, version=v0.10.21, argv=[node, <path>], rss=55934976, heapTotal=31139328, heapUsed=14503144, loadavg=[1.56640625, 1.62646484375, 1.3916015625], uptime=8404034, trace=[column=17, file=zlib.js, function=Zlib._binding.onerror, line=295, method=_binding.onerror, native=false], stack=[Error: invalid stored block lengths,     at Zlib._binding.onerror (zlib.js:295:17)]

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Anyone learn any more about this issue? I just tried to to use node-unzip on this zip file and it's not a signature problem (parse.js confirmed that the file's signature was 0x04034b50), but it still blows up with "invalid stored block lengths".

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I am getting the same issue with [email protected] & [email protected]

Says

Error: invalid signature: 0x80014

while extracting an .ipa file generated from Xcode 6.1. This was working fine for iOS 7 IPAs but started breaking for iOS 8 IPAs

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+1 on this; also encountering this issue (Error: invalid signature: 0x80014) when unzipping this book.

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Anyone has any hints what this error means?

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The problem is in parse.js. If you uncomment setImmediate in 161 than it works on my machine. And it seems logical. There is no need to wait for I/O events to finish. Actually that additional I/O events are executed is causing the problem.

// setImmediate(function() {
self._pullStream.unpipe();
self._pullStream.prepend(extra);
self._processDataDescriptor(entry);
// });

I'm using the latest version.

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Just had the same issue. Thanks for the fix @jdonnerstag. Unfortunately I do not see a PR for this change. :(

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+1

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