nginx php5-fpm path_info urls and root location

Question

Hello to all nginx & php gurus

I'm installing dotclear (a blogging software written in PHP) on my debian, and I have a hard time configuring nginx, php5-fpm and php so that :

1. I can use PATH_INFO url rewriting since I'm following Tim Berneer's Lee advice that urls should'nt expose what particular technology you use right now http://www.w3.org/Provider/Style/URI.html
2. satic-files are not parsed by PHP since it's terribly insecure to let example.org/uploads/image.jpg/index.php to be sent to PHP
3. have a root location that just works example.com should be rewritten to something like example.com/index.php?start

It seems that until now, I have to choose 2, that's why I'm asking for help here.

So here is my current /etc/nginx/nginx.conf

 server { server_name articles.eloge-de-la-folie.fr; root /srv/data1/articles.eloge-de-la-folie.fr ;
 
index index.php?start ; location / { try_files $uri $uri/ @pathinfo ; #try_files $uri $uri/ /index.php$uri?$args; } 
 
# Pretty URLs in dotclear # activate PATH_INFO urls in /admin/blog_pref.php location @pathinfo { rewrite ^ /index.php$uri?$args last; } location = / { rewrite ^ /index.php?start last; } location ~ ^(.+.php)(/.*)?$ { include fastcgi_params_pathinfo ; }
 
} 

I put everything fastcgi related in a separate /etc/fastcgi_params_pathinfo config file

 fastcgi_param QUERY_STRING $query_string; fastcgi_param REQUEST_METHOD $request_method; fastcgi_param CONTENT_TYPE $content_type; fastcgi_param CONTENT_LENGTH $content_length; #fastcgi_param SCRIPT_FILENAME $request_filename; fastcgi_param SCRIPT_NAME $fastcgi_script_name; fastcgi_param PATH_INFO $fastcgi_path_info; fastcgi_param REQUEST_URI $request_uri; fastcgi_param DOCUMENT_URI $document_uri; fastcgi_param DOCUMENT_ROOT $document_root; fastcgi_param SERVER_PROTOCOL $server_protocol; fastcgi_param GATEWAY_INTERFACE CGI/1.1; fastcgi_param SERVER_SOFTWARE nginx/$nginx_version; fastcgi_param REMOTE_ADDR $remote_addr; fastcgi_param REMOTE_PORT $remote_port; fastcgi_param SERVER_ADDR $server_addr; fastcgi_param SERVER_PORT $server_port; fastcgi_param SERVER_NAME $server_name; fastcgi_param HTTPS $https; # PHP only, required if PHP was built with --enable-force-cgi-redirect fastcgi_param REDIRECT_STATUS 200; # this is what I changed fastcgi_pass 127.0.0.1:9000; fastcgi_index index.php; fastcgi_split_path_info ^(.+\.php)(.*)$; fastcgi_param PATH_INFO $fastcgi_path_info; fastcgi_param PATH_TRANSLATED $document_root$fastcgi_path_info; fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name; 

Also in /etc/php5/fpm/pool.d/www.conf, I made sure to uncomment this

 security.limit_extensions = .php ; 

What happen currently ? - example.com/index.php and example.com/post/test are passed to the php interpretor and work - example.com/css/style.css are not passed to php and works - but when I go to example.com, the index.php is just downloaded, not interpreted.

My location = / { configuration here } is apparently never matched :(

Thanks in advance,

Jean-Michel

Answer 1

I'm pretty sure this is the problem

index index.php?start ; location / { try_files $uri $uri/ @pathinfo ; #try_files $uri $uri/ /index.php$uri?$args; } 

Nginx will never find a file with the filename "index.php?start" on the hard drive. In your location / block you are saying, try to find the URI, which is just /, which is just the root directory, and it finds that.

My location = / { configuration here } is apparently never matched :(

It is matched, just the first one is matched and not the second one. Remove the first location / block and the index index.php?start (because I think the latter will never work).

Answer 2

Here you'll find help.
And keep this too:

fastcgi_param SCRIPT_FILENAME $request_filename; 

It's not very elegant, but I don't have a better solution to provide :(

One note, though: When configuring dotclear to use PATH_INFO, you still have an index.php inside, just as in the URL above (which is hosted by dotclear). There may be a way around this with URL rewrites...