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Hi – I've been struggling with this for days. It seems simple but I just can't get it done.

I have a site developed in CakePHP. There's a script that responds to /css/profiles/g/whatever.css ("whatever" being whatever, it is actually a parameter that gets passed to the action), it echoes a generated CSS and saves it to /css/profiles/whatever.css.

I have a rule in Apache that takes requests to /css/profiles/whatever.css and, if it doesn't exist, rewrites the request to /css/profiles/g/whatever.css without redirecting, so the client never notices it was responded by a script and that the file didn't exist.

This is what I have in Apache:

# Profile CSS rules
RewriteCond %{REQUEST_URI} ^/css/profiles/
RewriteCond %{REQUEST_URI} !/css/profiles/g/
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule ^css/profiles/(.*)$ /css/profiles/g/$1 [L]

# CakePHP's default rules
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule ^(.*)$ index.php/$1 [QSA,L]

Now I'm moving the site to a server with Nginx, and so far I've got this:

# Profile CSS rules
location ~ ^/css/profiles/(?!g/)(.*)$ {
    if (!-f $request_filename) {
      rewrite ^/css/profiles/(.*)$ /css/profiles/g/$1 last;
      break;
    }

 }

# CakePHP's default rules
location / {

    try_files $uri $uri/ /index.php?$uri&$args; }

The conditions seem to be working, because if I go to /css/profiles/whatever.css and print out PHP's $_SERVER variable it gives me

[QUERY_STRING] => /css/profiles/g/whatever.css&

Notice the &. It means it got to the try_files part and added the $uri to the query string, and it has the correct $uri.

But...

[REQUEST_URI] => /css/profiles/whatever.css

That's the glitch. It seems it's not really changing the $request_uri which is what CakePHP needs to control what controller attends what.

Any help will be appreciated.

Thanks.

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1 Answer

So I finally got it working:

location ~ ^/css/profiles/(?!g/)(.*)$ {
  set $new_uri /css/profiles/g/$1;
  if (!-f $request_filename) {
    rewrite ^/css/profiles/(.*)$ /css/profiles/g/$1 last;
  }
}

...and at the end:

location ~ \.php$ {
  fastcgi_split_path_info ^(.+\.php)(/.+)$;
  fastcgi_pass 127.0.0.1:9000;
  fastcgi_index index.php;
  include fastcgi_params;

  ... some other stuff were here related to fastcgi
  fastcgi_param PATH_INFO $new_uri; # <--- I added this
}
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