Re: Password Protected Zip files and Archive::ZIP

Good call, unfortunately the docs provide you with:

isEncrypted()

Return true if this member is encrypted. The Archive::Zip module does not currently create or extract encrypted members.

At least you can check wheter a file is protected, and give a decent error message :)

Or you can first check wheter the file is encrypted and, if so, pass it on to some `unzip` system call. Not nice, but as I see it, it can't be done different (please prove that I'm wrong, anyone :)

--
b10m

Comment on Re: Password Protected Zip files and Archive::ZIP

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Re: Re: Password Protected Zip files and Archive::ZIP by eclark (Scribe) on Dec 17, 2003 at 23:45 UTC
Because of this limitation, I am using Info-ZIP's unzip in a system call. It is not very elegant but it works. `system("unzip -L -P $password -n $zipfile -d $outputdir"); my $retcode = ($? >> 8); if ($retcode) { ## abnormal failure die "unzip returned abnormal exit code $retcode"; }` [download]	[reply] [d/l]
Re: Re: Password Protected Zip files and Archive::ZIP by nimdokk (Vicar) on Dec 17, 2003 at 19:29 UTC
I found that out just a few minutes ago digging through more documentation on the module. I might see what I can come up with to account for the presence or absence of passwords on those files. Just have to keep playing with it. :-) "Ex libris un peut de tout"	[reply]
Re: Re: Re: Password Protected Zip files and Archive::ZIP by Gerard (Pilgrim) on Dec 17, 2003 at 20:18 UTC
Please post here, if you come up with anything, I would be interested to hear your results, as I am currently planning a similar scheme. Regards, Gerard	[reply]
Re: Re: Re: Re: Password Protected Zip files and Archive::ZIP by nimdokk (Vicar) on Dec 17, 2003 at 20:27 UTC
My general thought would be since I know if the file is encrypted, to simply pass that in as a parameter and make a system call to an unzip program (PKZIP in our case). Otherwise, simply make use of the Archive::ZIP module routines. Put it together into a small subroutine, pass it the zip file name as a required parameter and the password as an optional parameter. I might post some pseudo-code when I have something put together. "Ex libris un peut de tout"	[reply]