Hi,
On 18/08/2010 22:31, hendrik wrote:
> Hi everyone,
>
> I am using nginx as a proxy for custom URLs. I call URLs like
> /proxy/www.example.com/favicon.ico and nginx acts as a proxy for
> www.example.com/favicon.ico. This works fine as long as the response
> from the upstream server is not a 301. If it is a 301, this gets
> forwarded to the client which then calls the target location directly.
>
> Is there a way nginx can resolve these 301s and deliver the contents to
> the client? You can find the config below.
I think you should be able to do this by compiling the headers-more
module (http://github.com/agentzh/headers-more-nginx-module) and have a
config like :
proxy.conf
--------------
resolver 8.8.8.8;
proxy_pass http://$1;
more_set_headers -s '301 302 303' 'Location: /proxy/$upstream_http_location'; # you might want to add more 30x's here
nginx.conf
-------------
location ~ ^/proxy/http://(.*)$ {
include proxy.conf;
}
location ~ ^/proxy/(.*)$ {
include proxy.conf;
}
though I've not tested it. I think that $upstream_http_location will be
set after the response from the source server, but I'm not certain.
A few notes :
- Having a proxy without some kind of security check is probably not a
good idea. You could do this with your proxy, but could also be done
with iptables.
- There's probably not much point in trying to enforce 'domain/url' in
the regex. It will slow things down, and you don't really gain
anything. Same with case-insensitive regexes.
- Nginx buffers responses until the request has been completed before
passing to the client. On small files, this shouldn't be a problem, but
on big ones it might. On continual audio/video streams, it will block
(as far as I know, and it did the last time I tested it).
- Depending on what you're using it for, you might be better off using
Apache Trafficserver as a high-performance forward proxy. The
performance is good, and I think it'll be able to do what you want, but
the config files are really ugly.
Cheers,
Marcus.
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