REGULAR EXPRESSION (url.rewrite)

Question

I want to use url rewrite for linux lighttpd.conf but I can't get the right regular expression.

My web url is ip/cgi/aaa/bbb and I want to rewrite the url path. My target is /var/www/cgi/aaa.cgi?par=bbb

I write the rule as "^/cgi/([^/]+)\\/(.*)?"=> "/var/www/cgi/$1.cgi?par=$2"
But somehow I can't get the parameter par value.

Answer 1

Your issue is because of your anchoring at the beginning of the input.

^/cgi

..will not match ip/cgi , because ip is at the start.. not /cgi . To fix it.. put ip in front of what you have:

 ^ip/cgi/([^/]+)\/(.*)?
# ^^ this part

Below is the output once that change is made:

Answer 2

"^" matches at beginning of string. As your ip is dynamic, try to match from "cgi" as it is absolute.

I tried below input at http://gskinner.com/RegExr/ and worked fine.

/cgi/([^/]+)\/(.*)? 
/var/www/cgi/$1.cgi?par=$2
ip/cgi/aaa/bbb

result is ip/var/www/cgi/aaa.cgi?par=bbb

If you don't want "ip" in result string, use

(.*)/cgi/([^/]+)\/(.*)?
/var/www/cgi/$2.cgi?par=$3
ip/cgi/aaa/bbb

result is /var/www/cgi/aaa.cgi?par=bbb (without ip)