Сокеты. Как получить адрес клиента?

server
{
listen 443 ssl;
ssl_certificate /etc/ssl/site.ru.crt;  
ssl_certificate_key /etc/ssl/site.ru.key;
server_name site.ru www.site.ru;
charset UTF-8;
index index.php index.html;
disable_symlinks if_not_owner from=$root_path;
include /etc/nginx/vhosts-includes/*.conf;
include /etc/nginx/vhosts-resources/site.ru/*.conf;
access_log /var/www/httpd-logs/site.ru.access.log;
error_log /var/www/httpd-logs/site.ru.error.log notice;
ssi on;
set $root_path /var/www/user/data/www/site.ru;
root $root_path;
location / {
  location ~ [^/]\.ph(p\d*|tml)$ {
   try_files /does_not_exists @fallback;
  }
  location ~* ^.+\.(jpg|jpeg|gif|png|svg|js|css|mp3|ogg|mpe?g|avi|zip|gz|bz2?|rar|swf)$ {
   try_files $uri $uri/ @fallback;
  }
  location / {
   try_files /does_not_exists @fallback;
  }
}
location @fallback {
  proxy_pass http://127.0.0.1:8080;
  proxy_redirect http://127.0.0.1:8080 /;
  proxy_set_header Host $host;
  proxy_set_header X-Real-IP $remote_addr;
  proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
  proxy_set_header X-Forwarded-Proto $scheme;
  proxy_set_header X-Forwarded-Port $server_port;
  access_log off;
}
location /ws/ {
                proxy_pass http://site.ru:8000/components/socket.php;
                proxy_http_version 1.1;
                proxy_set_header Upgrade $http_upgrade;
                proxy_set_header Connection "upgrade";
                proxy_set_header Host $host;
                proxy_set_header X-Real-IP $remote_addr;
                proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
                proxy_set_header X-Forwarded-Proto https;
                proxy_read_timeout 999999999; # neccessary to avoid websocket timeout disconnect
                proxy_redirect off;
    }
}