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Re: music.read-only sandbox entitlement doesn't seem to work
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Re: music.read-only sandbox entitlement doesn't seem to work


  • Subject: Re: music.read-only sandbox entitlement doesn't seem to work
  • From: Michael Crawford <email@hidden>
  • Date: Tue, 17 Jan 2012 18:05:28 -0500

I've figured out what is going on (I think).  As long as your iTunes library is installed in this path: ~/Music/iTunes/iTunes Media/, the music entitlement works.  It is path specific!  This makes "com.apple.security.assets.music.*" only sligtly better than "com.apple.security.temporary-exception.files.home-relative-path.*" in that the music entitlement is not temporary.  However The user can break it by going into iTunes preferences and moving their media files.  I haven't tested it but I assume this will brake the movies entitlement as well.

- Michael

On Jan 15, 2012, at 2:55 PM, Michael Crawford wrote:

> I tried replacing my Core Audio code for reading and decoding the music files with calls to the AV Foundation framework.  I was hoping that the defunct assets.music.read-only entitlement would begin working if I used AV Foundation instead.  No joy.  AVAsset cannot read the file (NO == asset.readable) without the temporary path entitlement in place.
>
> -Michael
>
> On Jan 9, 2012, at 12:52 PM, Michael Crawford wrote:
>
>> I'm converting over a legacy Core-Audio application to run sandboxed.  This app normally access files in the iTunes library in order to analyze them for BPM information.  Enabling the music.read-only entitlement does not work.
>>
>> 	com.apple.security.assets.music.read-only
>>
>> I get the following error:
>>
>> 	deny file-read-data /Users/smj/Music/iTunes/iTunes Music/Depeche Mode/Violator/01 World In My Eyes.mp3
>>
>> I have been able to overcome this problem by adding the temporary exception to perform relative reads from the users home directory using this path:
>>
>> 	/Music/iTunes/iTunes Music/
>>
>> My issue with this solution is that it is temporary!  Can anyone shed light on why the music entitlement is not working?  As I indicated I'm using Core Audio APIs.  Do I need to switch to AVAsset or something like this to make this work?  Some other little detail I'm leaving out?
>>
>> One other thought that just occurred to me is that I'm using the paths I get from iTunes to try and access these files.  These paths are absolute from the root directory and look something like this:
>>
>> 	Unable to open track file://localhost/Users/michael/Music/iTunes/iTunes Music/Depeche Mode/Violator/01 World In My Eyes.mp3 (File not found)
>>
>> Do I need to specify some sort of relative substitute when using *.music.read-only?
>>
>> -Michael
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  • Follow-Ups:
    • Re: music.read-only sandbox entitlement doesn't seem to work
      • From: Laurent Daudelin <email@hidden>
References: 
 >music.read-only sandbox entitlement doesn't seem to work (From: Michael Crawford <email@hidden>)
 >Re: music.read-only sandbox entitlement doesn't seem to work (From: Michael Crawford <email@hidden>)

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