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Unzip passwrod protected file using InDesign JavaScript

Community Beginner ,
Oct 08, 2023 Oct 08, 2023

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Hi All,

 

Is there a way to unzip a password-protected file using InDesign JavaScript?

 

Please provide some examples if possible.

 

Thanks,

Shonky

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correct answers 1 Correct answer

Community Expert , Oct 18, 2023 Oct 18, 2023

Google this:

javascript unzip password

And you'll get the answer(s) you're looking for. You're not going to like them very much I don't think but that's your lot.

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Community Expert ,
Oct 08, 2023 Oct 08, 2023

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A lot of files are actually ZIP archives (EPUB, MS Office, etc.) and have to be accessed through an archive opener. I'm pretty sure there are standard code examples and library routines for both regular ZIP and PW-protected ZIP files out there; not sure if they mesh with ID's version of things.

 

I've been looking for a good module to do just that, for other purposes, preferably with seamless PW control built in. Haven't found one, but I'm feeble on JS, my programming era being a while back.


╟ Word & InDesign to Kindle & EPUB: a Guide to Pro Results (Amazon) ╢

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New Here ,
Oct 11, 2023 Oct 11, 2023

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Thanks James for your reply!

 

Zip and Unzip using InDesign JavaScript is possible but I am looking if we can extract a PW protected zip file using InDesign JavaScript.

 

Thanks,

Shonky

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Community Expert ,
Oct 11, 2023 Oct 11, 2023

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If you're on Mac then you can use the unzip shell command. I don't know if shell scripts can be called directly from JavaScript, if not then you'll need to use doScript command in JavaScript to call do shell script AppleScript.

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New Here ,
Oct 14, 2023 Oct 14, 2023

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Thanks Leo! But I need it to work on Mac and Windows both. I found a Zip.js library, here is a link

https://gildas-lormeau.github.io/zip.js/

 

But I am unable to use it in InDesign, I hope someone expert here can help me.

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Community Beginner ,
Oct 15, 2023 Oct 15, 2023

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I tried to inlcude zip.js in InDesign JavaScript and getting attached error.

 

I am not sure if zip.js compitable for InDesign JavaScript.

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Community Expert ,
Oct 15, 2023 Oct 15, 2023

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There are some examples for Windows:

 

https://stackoverflow.com/questions/10186813/how-to-run-cmd-exe-with-parameters-from-javascript

 

Something similar should be somewhere for Mac. 

 

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Community Beginner ,
Oct 15, 2023 Oct 15, 2023

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Thanks Robert!

Can you please provide example with unzip with password?

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Community Expert ,
Oct 15, 2023 Oct 15, 2023

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Everything depends on unzip tool you plan to use... 

 

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Community Expert ,
Oct 16, 2023 Oct 16, 2023

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You would have to use an external language that can perform the unzip function then call an Extendscript routine on the unzipped packaged.

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Community Beginner ,
Oct 17, 2023 Oct 17, 2023

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Thanks Brian, I tried to use zip.js but it's not working in InDesign JavaScript, and not sure for any other external library which support InDesign.

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Community Expert ,
Oct 16, 2023 Oct 16, 2023

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You can unzip a zip file using unpackageUCF():

app.unpackageUCF (
  File ('myZip.zip'),
  Folder ('d:/unzipped/')
);

Though probably password-protected zip files will be refused, but that will be the case with all unpackers. You'll have to look for a utility that allows a password as an input parameter, and you'll have to get the password from the party that produced the zip file.

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Community Beginner ,
Oct 17, 2023 Oct 17, 2023

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Thanks Peter! it's working fine for files without a password. Do you have any suggestion for any utility that support password, I am unable to find out. I just got zip.js but it's not working with InDesign and getting attached error.

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Community Expert ,
Oct 18, 2023 Oct 18, 2023

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What is wrong with my example? 

 

You just need to find unzipping tool, check params for it to unzip password protected files and then build string to use in my example?

 

Similar principle for Mac - you just need to Google it. 

 

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Community Expert ,
Oct 18, 2023 Oct 18, 2023

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Maybe not a very straightforward answer - but an example how to execute shell command on Mac:

 

https://community.adobe.com/t5/indesign-discussions/is-it-possible-to-run-a-mac-os-shell-command-wit...

 

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Community Expert ,
Oct 18, 2023 Oct 18, 2023

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Google this:

javascript unzip password

And you'll get the answer(s) you're looking for. You're not going to like them very much I don't think but that's your lot.

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