Stephen, from the docs:

"If you don't specify a content type, the Blobstore will try to infer
content type from the file extension. If no content type can be determined,
the newly created blob is assigned content type application/octet-stream."

- Jason

On Tue, Dec 15, 2009 at 6:05 AM, Stephen Mayer <[email protected]>wrote:

> Hi Jason,
>
> Looks like an exciting new feature!  My concern after looking thru the
> docs is how we tell what file the user actually uploaded ... was it an
> image, a video, etc ... for validation and sanity checks?  It seems
> like you could use the fetch api to get the actual file and work on it
> in some way, but that seems a bit ackward.  I do think its a great
> feature tho for admin uploaded content that is trusted. Or am I
> missing something here?
>
> Stephen
>
> On Dec 14, 11:00 pm, "Jason (Google)" <[email protected]> wrote:
> > Hi Everyone. We just released version 1.3.0 of the App Engine SDK for
> > both Python and Java. The most notable change is the new experimental
> > Blobstore API which allows billed apps to store files up to 50 MB. The
> > release also includes some performance tweaks to the Java runtime.
> >
> > Blog post:
> http://googleappengine.blogspot.com/2009/12/app-engine-sdk-130-releas...
> >
> > Release notes:
> > Python:http://code.google.com/p/googleappengine/wiki/SdkReleaseNotes
> > Java:
> http://code.google.com/p/googleappengine/wiki/SdkForJavaReleaseNotes
> >
> > Cheers!
> > - Jason
>
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