Nginx -- https vhost rewrite

server {
    listen 172.31.18.221:80;
    server_name www.example.info example.info;
    charset utf-8;
    rewrite ^ https://www.example.info$request_uri? permanent;
}
server {
    listen 172.31.18.221:443 ssl;
    server_name www.example.info example.info;
    charset utf-8;
    add_header Strict-Transport-Security max-age=15768000;
    root /var/www/example/w;
    index index.html index.htm;
    error_log /var/log/nginx/example_error.log error;
    access_log /var/log/nginx/example_access.log combined;

    if ($host = 'example.info') {
        rewrite ^/(.*)$  https://www.example.info/$1  permanent;
    }

    ssl on;
    ssl_certificate example2.pem;
    ssl_certificate_key example2.key;
    ssl_session_cache shared:SSL:50m;
    ssl_session_timeout 5m;

    ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
    ssl_ciphers "ECDHE-RSA-AES256-GCM-SHA384:ECDHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-SHA384:ECDHE-RSA-AES128-SHA256:ECDHE-RSA-AES256-SHA:ECDHE-RSA-AES128-SHA:DHE-RSA-AES256-SHA256:DHE-RSA-AES128-SHA256:DHE-RSA-AES256-SHA:DHE-RSA-AES128-SHA:ECDHE-RSA-DES-CBC3-SHA:EDH-RSA-DES-CBC3-SHA:AES256-GCM-SHA384:AES128-GCM-SHA256:AES256-SHA256:AES128-SHA256:AES256-SHA:AES128-SHA:DES-CBC3-SHA:HIGH:!aNULL:!eNULL:!EXPORT:!DES:!MD5:!PSK:!RC4"; # Disable weak ciphers
    ssl_prefer_server_ciphers on;

    location / {
        index index.php;
        error_page 404 = @mediawiki;
    }

    location @mediawiki {
        rewrite ^/wiki([^?]*)(?:\?(.*))? /index.php?title=$1&$2 last;
    }

    location ~ \.php$ {
        fastcgi_split_path_info ^(.+\.php)(/.+)$;
        fastcgi_pass unix:/var/run/php5-fpm.sock;
        fastcgi_index index.php;
        include fastcgi_params;
    }

    location ~ /\.ht {
        deny all;
    }
}