SSI subrequest cannot work with "error page" directive?

Thu May 22 15:39:03 MSD 2008

In article <nemoWed052108114412 at news.gmane.org>
nightsailer<nightsailer at gmail.com> wrote:
>  Hi, I have discovered a situation where nginx can't handle
> SSIvirtualtags right with "error page":

>  nginx is configured to serve local files, then fallback to
> proxyremotefile,and then stored in local through "proxy_store":

>  root /cache/$host;
>  location / {
>  index index.shtml;
>  error_page 404 = /fetch$uri;
>  }
>  ssi on;
>  location /fetch {
>  internal;
>  proxy_pass <http://backend;>
>  proxy_store on;
>  proxy_store_access user:rw group:rw all:rw;
>  proxy_set_header Host $host;
>  proxy_set_header X-Real-IP $remote_addr;
>  proxy_set_header Via "s9/nginx";
>  alias /cache/$host;
>  }
>  location ~ /$ {
>  index index.shtml;
>  error_page 403 404 = @fetch;
>  }
>  location @fetch {
>  internal;
>  proxy_pass <http://backend;>
>  proxy_store /cache/$host${uri}index.shtml;
>  proxy_store_access user:rw group:rw all:rw;
>  proxy_set_header Host $host;
>  proxy_set_header Via "s9/nginx";
>  proxy_set_header X-Real-IP $remote_addr;
>  }

>  example,  there is index.shtml,like:

>  <body>
>  <!--# include virtual="/fragment/1.ssi" -->
>  ...

>  nginx returns the page and then attempts to process the SSI virtual
> tags. But, the virtual tags request can't redirect "/fragment/1.ssi"
> to internal location: 
>  "/fetch", it just report can't find "/fragment/1.ssi" . 
>  If I request the "/fragment/1.ssi" directly,
>  it works fine, it will proxy pass to backend,and store the content
>  into"/cache/host/fragment/1.ssi".

>  and, if I add:

>  location /fragment {
>  	proxy_pass <http://backend;>
>  	...
>  }

>  now, nginx will process index.shtml and return composed content
> right.

>  So,I wonder, does the subrequest to the SSI virtual tags can't
> handle"error page" directive?

>   

Ok, I think error_page directive not work with SSI subrequest,
but, there's my alternate solution(more easy way):

set $index 'index.shtml';
set $store_file $request_filename;
if ($uri ~ /$ ){
    set $store_file $request_filename$index;
    rewrite (.*) $1index.shtml last;
}
location / {
    index index.shtml;
    proxy_store on;
    proxy_temp_path      /cache/temp;
    proxy_set_header   Host $host;
    proxy_set_header   X-Real-IP   $remote_addr;
    proxy_set_header   Via "s9/nginx";
    proxy_store_access   user:rw  group:rw  all:rw;
    if ( !-e $store_file ) {
        proxy_pass <http://backend;>
    }
}

Now, all works fine, nginx is cool!

Sorry for my English, I'm Chinese,
for Sichuan earthquake victims:
Wish all injured people live through the baddest time.
I hope every things getting better..

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