[Web-SIG] serving (potentially large) files through wsgi?
manlio_perillo at libero.it
Mon Dec 17 19:06:20 CET 2007
Ian Bicking ha scritto:
> Manlio Perillo wrote:
>> Chris Withers ha scritto:
>>> Manlio Perillo wrote:
>>>> 2) handle the range request in the WSGI application.
>>>> Its not hard as long as you do not implement multiple ranges
>>>> If your object database supports seeks, this should be the most
>>>> efficient solution.
>>> This is probably what's wanted. So, if a wsgi app does its own range
>>> handling, the wsgi server won't interfere?
>> Yes, it should not interfere (well, with mod_wsgi for nginx it *will*
>> interfere if you enable the wsgi_allow_ranges directive).
> You should be able to detect whether interference is allowed based on
> the response status, shouldn't you?
> That is, if there is a range
> request and the application replies 200 OK, you can change that and
> apply the ranges. But if the application replies with 206 Partial
> Content then the range has already been applied and the server shouldn't
> do anything to it.
Thanks, I'll think about it.
I have just added a wsgi_allow_ranges directive, without further
processing, since I'm assuming that an user can anticipate if a WSGI
application is able to process partial content and thus he can just
enable or disable the directive.
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