Comments on: FZip Alpha Release: Create And Modify ZIP Archives

By: Parks

Parks — Wed, 23 Sep 2009 01:55:26 +0000

Nice library.

I’m having one issue that I haven’t been able to overcome. I’m creating a zip file using your library. The resulting zip appears fine and can be opened with 7zip or through Windows with no problem. However, I’m trying to read the file with python (2.5) and am getting a BadZipFile exception.

The curious thing is that this error occurs with your library or the nochump library…which leads me to wonder if its an issue either with python or the underlying compress method in flex.

Any thoughts? Thanks.

By: Kim Adams

Kim Adams — Fri, 05 Jun 2009 15:30:36 +0000

Great library! This is enormously useful. Thank you!

Here’s a couple of things that I found confusing, hopefully the solutions that I found can help someone else.

1. How do you determine if the checksum has been properly embedded?
Install Python somewhere on your computer, navigate to the directory. Drag the zipped file that you want to use and the fzip-prepare.py script into the python directory. Right click fzip-prepare.py and select “edit with IDLE”. Run the console. Type these two lines:
import os
os.system(“python fzip-prepare.py yourZip.zip”)
If the console returns 0, you’ve successfully added the checksum, any other number indicates some failure.

2. What should the directory structure inside the zip look like for fZip to work?
When you download the icons, the demo source code expects the zipped file to be the ‘icons’ directory. To have the code immediately work either select the ‘icons’ subdirectory and zip/embed the checksum into that. Or, edit the path to the icons in provided demo source code.

By: Njal Gjermundshaug

Njal Gjermundshaug — Thu, 26 Mar 2009 17:41:44 +0000

Vishal & Mitesh:

Turned out zipping folders was pretty straight forward :)

To place a file inside a folder in the zip file, just specify the foldername followed by “/” before the filename..:

zip.addFile(“MyFolder/” + inpFile.name, bArray);

Claus: Great work!! You saved my day!

By: Njal Gjermundshaug

Njal Gjermundshaug — Thu, 26 Mar 2009 15:15:48 +0000

Support for zipping folders would be great!

By: Claus Wahlers

Claus Wahlers — Mon, 16 Mar 2009 15:59:06 +0000

Guillermo, unfortunately that’s not possible, as AIR generally doesn’t support setting file permissions.

By: Guillermo

Guillermo — Mon, 16 Mar 2009 15:50:10 +0000

I am working with OSX. Is there any way to maintain the file permissions? If I extract a file using the OS or any tools the file permissions are maintained. In this case it’s an executable file. When I use this lib, the permissions are lost when I decompress. I used this tool to create the zip file to make sure it’s zipped properly. I am working with Flex Builder 3 building an adobe air app.

By: Mitesh dave

Mitesh dave — Thu, 19 Feb 2009 14:32:51 +0000

Hii even i have the same issue has Vishal has,can anyone gimme a idea how can i zip a whole folder

By: Vishal

Vishal — Thu, 05 Feb 2009 09:49:11 +0000

Can anyone suggest how to zip the whole folder?? Any sample for that?

By: Hannes

Hannes — Wed, 17 Dec 2008 11:08:33 +0000

your library is very cool. thank you!

i have one question:
how is it possible to extract an empty folder?

i’m not able to do that. When the folder contains files it works and the folder is here.

thank you very much

By: borf

borf — Wed, 19 Nov 2008 21:00:27 +0000

I am using your library to extract a zip file created with WinZip. The zip file is created with winzip 9.0 with normal compression. I then ran the zip file through your python script which only outp uts the following:

sys:1: DeprecationWarning: struct integer overflow masking is deprecated

The zip file is modified however so I assume that it worked. Once I run my AS3 program and use FZip to extract the zip file I get the following error below. Any assistance appreciated.

FZip.as line 514
Adler32 checksum not found
at deng.fzip::FZipFile/parseContent()[C:\Projects\fzip\trunk\src\deng\fzip\FZipFile.as:514]
at deng.fzip::FZipFile/parseFileContent()[C:\Projects\fzip\trunk\src\deng\fzip\FZipFile.as:413]
at deng.fzip::FZipFile/parse()[C:\Projects\fzip\trunk\src\deng\fzip\FZipFile.as:362]
at deng.fzip::FZip/parseLocalfile()[C:\Projects\fzip\trunk\src\deng\fzip\FZip.as:431]
at deng.fzip::FZip/parse()[C:\Projects\fzip\trunk\src\deng\fzip\FZip.as:392]
at deng.fzip::FZip/loadBytes()[C:\Projects\fzip\trunk\src\deng\fzip\FZip.as:179]