check_hhtp - handle empty response

check_http

@@ -33,7 +33,7 @@ Additionally you can verify the response by
 
 SYNTAX:
   $_self [-h]
-  $_self [-m METHOD] -u URL \\
+  $_self [-m METHOD] -u URL [-c PARAMS]\\
       [-b REGEX] [-j FILTER] [-n REGEX] \\ 
       [-r REGEX] \\
       [-s STATUSCODE] \\
@@ -48,7 +48,8 @@ PARAMETERS:
   Define request:
   -u URL           Set url to fetch; eg. https://www.example.com/
   -m METHOD        Set a method, eg. HEAD; default: GET
-  -c PARAMS        additional curl params
+  -c PARAMS        additional curl params; curl will be executed 
+                   with '[PARAMS] -si -X [METHOD] --connect-timeout 10 [URL]'
 
   What to check:
   -s STATUSCODE    exact Statuscode to check; 3 digits; by default critical
@@ -112,7 +113,7 @@ sNotInBody=$(    ph.getValueWithParam ''    n "$@")
 sJq=$(           ph.getValueWithParam ''    j "$@")
 sLabel=$(        ph.getValueWithParam ""    l "$@")
 
-curlParams+=" -si -X $sMethod"
+curlParams+=" -si -X $sMethod --connect-timeout 10"
 sProblems=
 sOK=
 
@@ -123,11 +124,13 @@ if [ -z "$sUrl" ]; then
 fi
 
 out=$( curl $curlParams "$sUrl" )
-
+if [ -z "$out" ]; then
+    ph.setStatus critical
+    sProblems+="- Url [${sUrl}] not reachable - response is empty;\n"
+    iHttpStatus='???'
+else
     iHeaderEnd=$( echo "$out" | grep -n ^$'\r' | cut -f 1 -d ':' | head -1 )
 
-# echo "$out" | grep -n ^$'\r'; echo "cut header and body on line $iHeaderEnd"
-
     _header=$(echo "$out" | sed -n "1,${iHeaderEnd}p")
     _body=$(  echo "$out" | sed -n "${iHeaderEnd},\$p")
 
@@ -135,10 +138,6 @@ if [ -n "$sJq" ]; then
         _body=$( jq "$sJq" <<< "$_body" 2>/dev/null )
     fi
 
-# echo "HEADER"; echo "$_header"
-# echo "BODY"; echo "$_body"
-
-
     # --- test status
     typeset -i iHttpStatus
     iHttpStatus=$( grep -i "^HTTP/[0-9\.]* " <<< "${_header}" | awk '{ print $2 }')
@@ -201,6 +200,8 @@ if [ -n "$sNotInBody" ]; then
         
     fi
 
+fi
+
 # --- output
 test -n "$sProblems" && sProblems="Problems:\n$sProblems\n"
 test -n "$sOK"       && sOK="Found:\n$sOK"
@@ -211,8 +212,6 @@ test -n "$sLabel" && (
 )
 test -n "$sLabel" || ph.status "$sMethod $sUrl ($iHttpStatus)"
 
-echo
-echo Command: curl $curlParams "$sUrl"
 echo
 echo -e "${sProblems}${sOK}"