Re: Anatomy of an .xsiaddon file? / Are attachments base64-encoded?

Date : Sun, 16 Mar 2008 10:44:07 -0700
To : XSI(at)Softimage.COM
From : "Alan Fregtman" <alan.fregtman(at)gmail.com>
Subject : Re: Anatomy of an .xsiaddon file? / Are attachments base64-encoded?
Thank you, Halfy. I would have never figured that out. :)

Cheers,

   -- Alan

On Sun, Mar 16, 2008 at 6:33 AM, Halfdan Ingvarsson
<hingvars(at)softimage.com> wrote:
> They're compressed using zlib but they don't have the gzip headers. The compression starts at the 12th byte. The first 12 bytes contain a textural representation of the size (+pad).
>
>   - ½
>
>
>
>  -----Original Message-----
>  From: owner-xsi(at)Softimage.COM [mailto:owner-xsi(at)Softimage.COM] On Behalf Of Alan Fregtman
>  Sent: 15-Mar-2008 23:54
>  To: XSI(at)Softimage.COM
>  Subject: Re: Anatomy of an .xsiaddon file? / Are attachments base64-encoded?
>
>  Ok, that didn't seem to work. :/
>
>  Can someone confirm if it's really a zip file? I tried putting the base64-decoded contents to a file, and unzipping them with no luck.
>  Also tried to see if they might be .gz files.
>
>    -- Alan
>
>  ps: Any Soft employees around?
>
>
>  On Sat, Mar 15, 2008 at 8:01 PM, Alan Fregtman <alan.fregtman(at)gmail.com> wrote:
>  > That'd explain the binary-looking result I get when I decode it.
>  >
>  >  I'm gonna give a shot at grabbing the string and unzipping it.
>  >
>  >   -- Alan
>  >
>  >
>  >
>  >
>  >  On Sat, Mar 15, 2008 at 7:49 PM, Luc-Eric Rousseau <lucer(at)softimage.com> wrote:
>  >  >
>  >  >
>  >  >
>  >  > can't check right now but I think it's a zip file that's base64-encoded.
>  >  >
>  >  >
>  >  >
>  >  >
>  >  >  -----Original Message-----
>  >  >  From: owner-xsi(at)Softimage.COM on behalf of Alan Fregtman  >
>  > Posted At: Sat 3/15/2008 10:41 PM  >  To: xsi(at)Softimage.COM  >  Posted
>  > To: xsi  >  Subject: Anatomy of an .xsiaddon file? / Are attachments
>  > base64-encoded?
>  >  >
>  >  >  Hey guys,
>  >  >
>  >  >  I'm writing a little tool and I'm trying to decode certain files
>  > from  >  your typical .xsiaddon file.
>  >  >
>  >  >  I noticed it seems like some kind of XML-based format and
>  > attachments  >  (files) in it look like base64-encoded strings.
>  >  >  Are they base64-encoded or is it something else? Because I tried
>  > >  decoding what would be a plaintext file and it didn't seem to
>  > decode  >  right.
>  >  >
>  >  >  Any help appreciated.
>  >  >  Cheers,
>  >  >
>  >  >     -- Alan
>  >  >  ---
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