Hi there,
I wonder if this can be done with uwsgi:
I want to use uwsgi to do custom HTTP routing, generally a mixture to what is
described here
http://uwsgi-docs.readthedocs.org/en/latest/Fastrouter.html (in section
"Way 5 - fastrouter-use-code-string")
and
http://projects.unbit.it/uwsgi/wiki/CustomRouting (old documentation)
I need to route HTTP requests, based on information in the HTTP request body.
What I have:
- a uwsgi server started in emperor mode serving 2 custom apps (app_a
on socket 3065, app_b on socket 3066) and a custom router (on socket 3031).
- both app_a and app_b are python wsgi apps in my current setup, e.g.
# app a
def application(env, start_response):
start_response('200 OK',
[('Content-Type','text/html')])
return "<html><body>Hello World
<b>A</b>!</body></html>"
but should be anything that uwsgi does support as a uwsgi app.
- all HTTP requests (e.g. from nginx) go to the custom router.
- the custom router reads the body, decides if app_a or app_b is
responsible for handling the HTTP request and forwards the request to the
corresponding socket, like this (pseudo code):
import uwsgi
def handle(env):
# I need to read the whole body here, e.g.
env['wsgi.input'].read()
# but how to "rewind" the read so that
subsequent uwsgi.send_message work as expected?
# decide on the port based on the body
port = ...
return port
def application(env, start_response):
port = handle(env)
fd = ':30' + str(port)
# how to forward the unaltered body to the
other uwsgi workers (app_a/app_b)?
for part in uwsgi.send_message(fd, 0, 0, env,
0, env['wsgi.input'].fileno(), env['uwsgi.cl']:
yield part
My problem is with reading and rewinding the body for the upcoming
uwsgi.send_message call. I tried various means to read the body to a temporary
file, and use that for the .send_message call but I had no success so far.
I tried to solve this problem with an older version uwsgi (1.2 I believe) but
to no avail. I'm happy to upgrade to 1.4 or even more recent work-in-progress
versions as long as I can create a working prototype with uwsgi.
Is this possible with uwsgi?
Any help is appreciated.
Kind regards,
K.
On 26.02.2013, at 13:13, Marcin Deranek <[email protected]> wrote:
> On Tue, 26 Feb 2013 12:57:06 +0100
> "Roberto De Ioris" <[email protected]> wrote:
>
>> I have tried reproducing it for hours but without luck :(
>>
>> The only thing i can think of, is some difference in the keyname you
>> are using (i mean, i write something but you ask for another).
>>
>> Are you using python3 ?
>
> No, uwsgi 1.4.6 + perl 5.14.2 on CentOS 5.4 (glibc-2.5-42)
>
>> May i ask you to try with uWSGI 1.9 (+ stats enabled) as it exports
>> internal cache statistics ?
>
> Will give it a shot..
>
> Marcin
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