Having trouble understand how rewrite works

[victor]

Ah sorry, this one was meant for you Denis, not sure how gmail handled it.

---

Thanks again. I understand the map solution. Here's another issue, you
see, the links below all map to the index page (there are other pages
too, that have those PageID, ParentPageID, etc.. parameters).

/index.cfm?PageID=1
/index.cfm?resetCache=yes
/index.cfm?PageID=1&ParentPageID=1&NavID=1
/index.cfm?PageID=22&ParentPageID=1&NavID=22
/index.cfm?PageID=14&ParentPageID=38&NavID=38&ReferringPage=1

all map to / (index)

/index.cfm?PageID=35&ParentPageID=26&NavID=26
/index.cfm?PageID=35&ParentPageID=26&NavID=35&ProductID=8&PageText=off
/index.cfm?PageID=35&ParentPageID=26&NavID=35&ProductID=9&PageText=off
/index.cfm?PageID=35&ParentPageID=26&NavID=35&ProductID=10&PageText=off
/index.cfm?PageID=35&ParentPageID=26&NavID=35&ProductID=15&PageText=off
/index.cfm?PageID=35&ParentPageID=26&NavID=35&ProductID=16&PageText=off
/index.cfm?PageID=35&ParentPageID=26&NavID=35&ProductID=11&PageText=off

and these for example would map to another unique page.

The parameters specify the actual page that must be mapped to. And
since I now know I can't use regex on query parameters, is there a way
to handle this situation?

2011/10/19 Denis F. Latypoff <latypoff at yandex.ru>:
> 19.10.2011, 23:32, "victor" <noagbodjivictor at gmail.com>:
>> Hi Dennis,
>>
>> Thanks for your help,
>>
>> If I understand correctly, I need to use $arg_PARAMS. But in the full
>> source, I have expressions like this one:
>>
>> /index\.cfm\?PageID=(2|46)&(.*)$
>
> map $arg_PageID $is_old {
>    default    0;
>    2            1;
>    46          1;
> }
>
> server {
>    location = /index.cfm {
>        if ($is_old) {
>            return 301 /;
>        }
>        # regular rules
>    }
> }
>
>>
>> how do I deal with them in that case, if I can't use regex on the
>> query parameters?
>>
>> Thanks
>>
>> 2011/10/19 Denis F. Latypoff <latypoff at yandex.ru>:
>>
>>>  19.10.2011, 22:53, "victor" <noagbodjivictor at gmail.com>:
>>>>  Here's a small sample that is not working:
>>>>
>>>>  server {
>>>>          # /index.cfm?PageID=1  --> /
>>>  -         location ^~ /index\.cfm\?PageID=1$ {
>>>  -                 rewrite ^ / permanent;
>>>  +         location = /index.cfm {
>>>  +                 if ($arg_PageID = 1) {
>>>  +                         return 301 /;
>>>  +                 }
>>>  +                 try_files $uri @django;
>>>>          }
>>>>
>>>>          location / {
>>>>                  try_files $uri @django;
>>>>          }
>>>>
>>>>          location @django {
>>>>                  proxy_redirect      off;
>>>>                  proxy_set_header    Host            $host;
>>>>                  proxy_set_header    X-Real-IP       $remote_addr;
>>>>                  proxy_set_header    X-Forwarded-For $proxy_add_x_forwarded_for;
>>>>
>>>>                  include uwsgi_params;
>>>  +                 # 'if' is useless here
>>>  -                 if (!-f $request_filename) {
>>>>                      uwsgi_pass staging;
>>>  -                     break;
>>>  -                 }
>>>>          }
>>>>  }
>>>>
>>>>  It seems like the first directive is ignored when I request
>>>>  /index.cfm?PageID=1. The idea is to redirect some old links.
>>>>
>>>>  Thanks
>>>>
>>>>  --
>>>>  Victor Noagbodji
>>>>  http://www.victorsreviews.com
>>>>
>>>>  _______________________________________________
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>>>>  nginx at nginx.org
>>>>  http://mailman.nginx.org/mailman/listinfo/nginx
>>>  --
>>>  br, Denis F. Latypoff.
>>>
>>>  _______________________________________________
>>>  nginx mailing list
>>>  nginx at nginx.org
>>>  http://mailman.nginx.org/mailman/listinfo/nginx
>> --
>> Victor Noagbodji
>> http://www.victorsreviews.com
>>
>> _______________________________________________
>> nginx mailing list
>> nginx at nginx.org
>> http://mailman.nginx.org/mailman/listinfo/nginx
>
> --
> br, Denis F. Latypoff.
>
> _______________________________________________
> nginx mailing list
> nginx at nginx.org
> http://mailman.nginx.org/mailman/listinfo/nginx



-- 
Victor Noagbodji
http://www.victorsreviews.com