Nginx Regex – How to Rewrite URL with Special Characters in Nginx

nginxregexrewrite

How to write a regex that matches a path node with reserved characters like '+','-' ? for example:

https://e.example.com/foo+/bar/file/test.txt need to be re-written as https://e.example.com/bar/file/test.txt

I tried rewrite ^/foo+(/.*)$ break; but it couldn't match the string.

Any suggestions?

Best Answer

In nginx rewrite directive uses the normalized URI for matching. Normalized URI does not include query arguments or indexed search arguments.

You might be able to use a map here:

map $request_uri $filefromarg {
    ^[^+]*\+(.*)$ $1;
    default $request_uri;
}

And in the server block you would have:

try_files $filefromarg $uri =404;

The map takes $request_uri, which contains the full path to resource and query arguments. The first line regular expression captures everything after + sign and sets it to $filefromarg variable.

Then, in the try_files section that is used as the path to check for resource to serve.

Related Solutions

NGINX Reverse Proxy – URL Rewrite

Any redirect to localhost doesn't make sense from a remote system (e.g. client's Web browser). So the rewrite flags permanent (301) or redirect (302) are not usable in your case.

Please try following setup using a transparent rewrite rule:

location  /foo {
  rewrite /foo/(.*) /$1  break;
  proxy_pass         http://localhost:3200;
  proxy_redirect     off;
  proxy_set_header   Host $host;
}

Use curl -i to test your rewrites. A very subtle change to the rule can cause nginx to perform a redirect.

Nginx – Pass URL component/path to PHP with Nginx

I ended up using a named location. This functions, but I still feel like there's a better solution out there.

server {

  root /var/www/mysite.com;

  index index.php;
  server_name mysite.com;

  location ~ \.php$ {
    include snippets/fastcgi-php.conf;
    fastcgi_pass unix:/run/php/php7.0-fpm.sock;
  }

  location / {
    try_files $uri $uri/ @fallback;
  }

  location @fallback {
    rewrite ^/(.*)$ /index.php?section=$1 last;
  }

}

Best Answer

Related Solutions

NGINX Reverse Proxy – URL Rewrite

Nginx – Pass URL component/path to PHP with Nginx

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