Nginx Replace Characters in rewrite?

Question

Say you have a URL www.answers.mydomain.com/category/hello_world-123.html but you want to rewrite the path part as /category/hello-world

How would you go about that with an nginx rewrite? Basically how can I format the $1 variable?

 

     server{
       listen 80;
       server_name  ~^(?<subdomain>.+)\.bg\.com$
       root /home/dan/Projects/rewrite-example;


       set $PREFERRED_DOMAIN $scheme://www.bg.com;

       if ($subdomain ~* answers) {
         rewrite ^(.*)$ $PREFERRED_DOMAIN/questions$1 permanent;
       }
     }

VBart · Accepted Answer · 2012-07-20 21:56:45Z

2

 server{
     listen 80;
     server_name  answers.bg.com;

     rewrite ^(.+/[a-z]+)-\d+\.html$ http://www.bg.com$1 permanent;
     rewrite ^(.+/[a-z]+)_([a-z]+)-\d+\.html$ http://www.bg.com$1-$2 permanent;
     rewrite ^(.+/[a-z]+)_([a-z]+)_([a-z]+)-\d+\.html$
             http://www.bg.com$1-$2-$3 permanent;
     rewrite ^(.+/[a-z]+)_([a-z]+)_([a-z]+)_([a-z]+)-\d+\.html$
             http://www.bg.com$1-$2-$3-$4 permanent;
     rewrite ^(.+/[a-z]+)_([a-z]+)_([a-z]+)_([a-z]+)_([a-z]+)-\d+\.html$
             http://www.bg.com$1-$2-$3-$4-$5 permanent;
 }

answered Jul 20, 2012 at 21:56

VBart

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3 Comments

Dan Watson Over a year ago

Haha Back again :-) Ok so I kind of figured this but there is no way to do this recursively? It's ok if not I will just figure out the maximum length of my slugs.

VBart Over a year ago

Using standard directives seems that no way. As alternative you can use embedded perl or lua module.

Tobia Over a year ago

See my answer here stackoverflow.com/questions/15912191/… for a more efficient set of rewrite rules for character replacement.

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