fix: possible fix for #24

scripts/network_functions.sh

@@ -39,6 +39,20 @@ read_listen_port(){
   LISTEN_PORT=$(grep listen /etc/nginx/sites-enabled/$1 | head -1 | sed 's/^\s*//' | cut -d" " -f2 | cut -d";" -f1)
 }
 
+test_nginx(){
+  HOST_IP=$(hostname -I | cut -d" " -f1)
+  status_msg "Testing NGINX ..."
+  status_msg "Please wait ..."
+  sleep 15
+  status_msg "API response from http://$HOST_IP:$1/printer/info :"
+  echo -e "${cyan}$(curl -s "http://"$HOST_IP:$1"/printer/info")${default}"
+  if [ $(curl -s "http://"$HOST_IP:$1"/printer/info" | grep '^{"result"' -c) -eq 1 ]; then
+    echo; ok_msg "NGINX is working correctly!"; echo
+  else
+    echo; warn_msg "NGINX is not working correctly!"; echo
+  fi
+}
+
 detect_enabled_sites(){
   #check if there is another UI config already installed
   #and reads the port they are listening on