Aryeh, please take a look at mod_negotiation for an example of where we look at several subrequests, choose a best-match based on mime headers, and then promote that subrequest to become the real request.
Bill At 09:22 AM 8/8/2003, Aryeh Katz wrote: >Bill, >I was wondering if the following in the filter documentation is a doc bug based >on your comments below: > >"The second case for sub-requests is when one sub-request is going to >become the real request. This happens whenever a sub-request is created >outside of a handler or filter, and NULL is passed as the next filter to the >make_sub_request function." > >This seems to imply that it is possible to pass a NULL for the filter, and still >have it become the real request (which I assume is done in a method similar >to run_sub_req). >Can you shed some light on this please? >Thanks. >Aryeh > > >> The NULL argument for the filter is *ONLY* to be used for testing >> subrequests that are not actually run to the client. E.g. >> mod_autoindex uses the NULL arg to consider what files might be >> served, and if they are, in fact, actually valid content files, or if >> they have been protected or otherwise cannot be handled. >> >> You must pass the appropriate filter arg in order to pass the response >> through the filter stack back to the client. >> >> Look, instead, at mod_include.c or another module that actually serves >> the subrequest, for an example of the appropriate way to use this API. >> >> Bill >> >> At 02:37 PM 8/6/2003, Aryeh Katz wrote: >> >In certain circumstances, I need to do an internal redirect on the >> >client's request (without sending back a redirect to the client). I >> >tried using ap_sub_req_method_uri (specifying NULL for the filter), >> >and then ap_run_sub_req. I see that the content type of the new >> >request is correct (in my case, image/gif). However, when the request >> >is sent to the client, the content type is text/plain. Thus, the >> >reply to the client doesn't render properly. I suspect I am not >> >invoking ap_run_sub_req properly. Is there something I should know >> >about how to invoke run_sub_req? Thanks. Aryeh >> > >> >--- >> >Aryeh Katz >> >Secured-Services Inc. >> > > >--- >Aryeh Katz >Secured-Services Inc.
