Nginx rewrite rule for CodeIgniter - php

Question

Here is the rule in English:
Any HTTP request other than those for index.php, assets folder, files folder and robots.txt is treated as a request for your index.php file.
I have an .htaccess file that works correctly on Apache server:
RewriteCond $1 !^(index\.php|assets|files|robots\.txt)
RewriteRule ^(.*)$ index.php/$1 [L]
Some correct results for this rule:
example.com = example.com/index.php
example.com/index.php/welcome = example.com/welcome
example.com/assets/css/main.css != example.com/index.php/assets/css/main.css
I tried some tools to convert from htaccess rule to nginx rule but all were incorrect.
Via http://winginx.com/htaccess (missing the exception rules for assets folder...):
location / { rewrite ^(.*)$ /index.php/$1 break; }
Via http://www.anilcetin.com/convert-apache-htaccess-to-nginx/ (error in $1 value):
if ($1 !~ "^(index.php|assets|files|robots.txt)"){
set $rule_0 1$rule_0;
}
if ($rule_0 = "1"){
rewrite ^/(.*)$ /index.php/$1 last;
}
How can I fix this? It's really hard to debug the rule.
Here is my nginx config so far:
server {
listen 80;
server_name www.example.com example.com;
location / {
try_files $uri $uri/ /index.php?/$request_uri;
}
location ~ \.php$ {
root html;
fastcgi_pass 127.0.0.1:9000;
fastcgi_index index.php;
fastcgi_param SCRIPT_FILENAME /var/www/html$fastcgi_script_name;
include fastcgi_params;
}
location ~ /\.ht {
deny all;
}
}

Answer 1

You can add this to your config:
location ~* ^/(assets|files|robots\.txt) { }
This will work correctly with your location / rule.
Your config also need to add root document and default index file.
...
root /ftp/wardrobe;
index index.php index.html index.htm;
location / {
try_files $uri $uri/ /index.php?/$request_uri;
}
location ~* ^/(assets|files|robots\.txt) { }
...

Answer 2

You want to do this instead:
if ($request_uri !~ ^/(index\.php|assets|files|robots\.txt)) {
rewrite ^/(.*)$ /index.php/$1 last;
}
$request_uri is for the original URI request by the client. If you want the URI request AFTER other Nginx rewrite rules have processed it then you would use $uri. However, for what you are trying to do the prior would be the one you would want.
Also, you need to escape special regular expression characters like . by using a backslash.

Answer 3

Please try this. It works for me.
server {
server_name domain.tld;
root /var/www/codeignitor;
index index.html index.php;
# set expiration of assets to MAX for caching
location ~* \.(ico|css|js|gif|jpe?g|png)(\?[0-9]+)?$ {
expires max;
log_not_found off;
}
location / {
# Check if a file or directory index file exists, else route it to index.php.
try_files $uri $uri/ /index.php;
}
location ~ \.php$ {
try_files $uri =404;
fastcgi_split_path_info ^(.+\.php)(/.+)$;
fastcgi_pass unix:/var/run/php5-fpm.sock;
fastcgi_index index.php;
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
include fastcgi_params;
}
}