Check if this domain is blocked by Pi-hole but only if the domain is not a local file or empty

Signed-off-by: DL6ER <dl6er@dl6er.de>

gravity.sh

@@ -517,6 +517,10 @@ gravity_DownloadBlocklistFromUrl() {
   str="Status:"
   echo -ne "  ${INFO} ${str} Pending..."
   blocked=false
+
+  # Check if this domain is blocked by Pi-hole but only if the domain is not a
+  # local file or empty
+  if [[ $url != "file"* ]] && [[ -n "${domain}" ]]; then
     case $(getFTLConfigValue dns.blocking.mode) in
         "IP-NODATA-AAAA"|"IP")
         # Get IP address of this domain
@@ -539,7 +543,6 @@ gravity_DownloadBlocklistFromUrl() {
         fi;;
     esac
 
-
     if [[ "${blocked}" == true ]]; then
         # Get first defined upstream server
         local upstream
@@ -569,6 +572,7 @@ gravity_DownloadBlocklistFromUrl() {
         echo -ne "  ${INFO} ${str} Pending..."
         cmd_ext="--resolve $domain:$port:$ip"
     fi
+  fi
 
   # shellcheck disable=SC2086
   httpCode=$(curl --connect-timeout ${curl_connect_timeout} -s -L ${compression} ${cmd_ext} ${heisenbergCompensator} -w "%{http_code}" "${url}" -o "${listCurlBuffer}" 2> /dev/null)