I think it depends:).
Are you trying to implement something like progressive download in opencore
player?
If so, I think you might not want to grant the access permission of
downloaded files only to the default music player?

Will it be played as ringtone or inserted to MMS? :)

-freepine

On Thu, Dec 25, 2008 at 12:49 PM, rktb <[email protected]> wrote:

>
> Oh ok.  Thanks freepine !
>
> So, can we summarize that the mediaserver cannot really create a file
> in internal memory. And, the best way to provide a file access is to
> pass it through a file descriptor from the application to the
> mediaserver process.
>
> -Ravi
>
> On Dec 25, 9:11 am, freepine <[email protected]> wrote:
> > I guess it's the java app you are using, i.e. com.android.music
> >
> > On Thu, Dec 25, 2008 at 9:57 AM, rktb <[email protected]> wrote:
> >
> > > Hi Dave,
> >
> > > Sorry...I did not understand completely.
> >
> > > What is the native app?
> >
> > > -Ravi
> >
> > > On Dec 25, 12:34 am, Dave Sparks <[email protected]> wrote:
> > > > Hi Ravi,
> >
> > > > I think you need to have the native app create the file and pass the
> > > > open file descriptor to the media server. This is how rights are
> > > > conferred from one process to another in the Android security model.
> >
> > > > Dave
> >
> > > > On Dec 24, 12:58 am, rktb <[email protected]> wrote:
> >
> > > > > Hi,
> >
> > > > > Need some pointers about file access permissions:
> >
> > > > > Here is what I have tried:
> >
> > > > > From the Java app., I can create a file in /data/data/
> > > > > <my_package_name>/files/ using the API openFileOutput(). The
> > > > > permissions of the file is as follows:
> > > > > -rw-rw---- app_10   app_10          0 2008-12-23 09:17
> testFile1.txt
> >
> > > > > The files folder itself has the permissions:
> > > > >  drwxrwx--x app_10   app_10            2008-12-23 09:17 files
> >
> > > > > When I create a file using native code on /sdcard, the permissions
> are
> > > > > as follows:
> > > > >  ----rw-rw- system   system          0 2008-12-23 09:17
> > > > > fromNativeCode.txt
> > > > > Is it right to say that native code process has "system" rights?
> >
> > > > > Now, when I create a file using the Java layer, I can open the same
> > > > > file for "reading" through native code. But, I cannot open a file
> in
> > > > > the same place using the native code with "writing" capability.
>  The
> > > > > permissions of the "files" folder is "app_10", which is the userID
> of
> > > > > the app. Right? Doesn't "system" trump "app_10" in terms of
> > > > > permissions?
> >
> > > > > In other words, the objective that I am trying to achieve is to
> create
> > > > > a file inside native code at a place other than sdcard. Preferably,
> > > > > application specific location.
> >
> > > > > Any document that anybody could point that would detail more about
> > > > > security and permissions? I have already readhttp://
> > > code.google.com/android/devel/security.html. But, it does not
> > > > > deal with native code details.
> >
> > > > > Thanks,
> > > > > Ravi
> >
>

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