Attaching files to a document like a file system

[zryip theSlug]

Hi Bill,

Not sure how your app works, but if you have a database behind and if
it manages BLOB (Binary Large Object), consider this:

1) Somewhere in a pref table, add two blobs one with a description
file of an empty disk image mac (ie dmg), the other with a description
file of an empty disk image windows (ie iso). I'm not sure how it
works on linux, so I exclude it.
2) In your user or maybe wallet table, add a blob
3) When an user opens its Wallet for the first time (blob empty).
- If it is on windows, copy the windows blob from the pref table to
the wallet table
- If it is on mac, copy the mac blob from the pref table to the wallet table
4) Restore the wallet blob somewhere on the disk
5) Mount the image and decrypt the files
6) When the user closes its Wallet, encrypte the file in the image,
unmount the image and store the image file in the Wallet Blob.

If you need to know how to store/restore a blob from a database, I
have shared somewhere on the list, a piece of code.
For more convenience, have a look on the lab experiment 4 on
www.aslugontheroad.co.cc.

Hope this helps.


-Zryip the Slug- wish you the best! 8)


2010/1/3 Bill Vlahos <bvlahos at mac.com>:
> I want to add the ability to store documents encrypted in InfoWallet. I can figure out how to simply add them either to a custom property or just encrypt on disk. It would be great to be able to treat the storage like a disk instead of attached files that can be imported and exported where you can open-from and save-to them and copy to and from it.
>
> Apple's Disk Tools can create these types of disk images that can be encrypted but they only work on the Mac.
>
> Any ideas on how this can be done in Rev that works cross platform?
>
>
> Bill Vlahos