check_http first lines

check_http

@@ -22,7 +22,10 @@ function showHelp(){
 cat <<EOF
 $( ph.showImlHelpHeader )
 
-TODO
+Makes an http request to chewck the response by
+- http status code
+- content in http response header
+- content in http response body
 
 SYNTAX:
   $_self [-h] ...
@@ -31,32 +34,29 @@ OPTIONS:
 
   -h               this help
 
+PARAMETERS:
+
+  Define request:
   -u URL           Set url to fetch
+  -m METHOD        Set a method, eg. HEAD; default: GET
+
+  What to check:
   -s STATUSCODE    Statuscode to ceck
   -r REGEX         String to check in http response header
+  -j JQ-FILTER     for JSON Response: filter data by a jq
   -b REGEX         String to check in response body 
 
-  TODO
-  -m METHOD
-  -j JQ-FILTER
+  Output:
+  -l LABEL         set a custom label; default: METHOD + URL eg.
+                   "GET https://example.com/status"
 
 EXAMPLES:
 
-  $_self -u 
+  $_self ...
 
 EOF
 }
 
-function getHeader(){
-    set -vx
-    echo "$1" | sed -n "1,${2}p"
-}
-
-function getHeader(){
-    set -vx
-    echo "$1" | sed -n "1,${2}p"
-}
-
 # ----------------------------------------------------------------------
 # MAIN
 # ----------------------------------------------------------------------
@@ -71,9 +71,14 @@ fi
 ph.require "curl"
 
 sUrl=$(     ph.getValueWithParam ''    u "$@")
+sMethod=$(  ph.getValueWithParam 'GET' m "$@" | tr [:lower:] [:upper:])
+
 iStatus=$(  ph.getValueWithParam '200' s "$@")
 sHeader=$(  ph.getValueWithParam ''    r "$@")
 sBody=$(    ph.getValueWithParam ''    b "$@")
+sJq=$(      ph.getValueWithParam ''    j "$@")
+sLabel=$(   ph.getValueWithParam "$sMethod $sUrl"    l "$@")
+
 
 curlParams="-si"
 sProblems=
@@ -85,8 +90,7 @@ if [ -z "$sUrl" ]; then
     ph.exit
 fi
  
-test -z "$sBody"  && curlParams+=" -I"
-
+# test -z "$sBody"  && curlParams+=" -I"
 
 
 out=$( curl $curlParams "$sUrl" )
@@ -97,6 +101,10 @@ iHeaderEnd=$( echo "$out" | grep -n ^$'\r' | cut -f 1 -d ':')
 _header=$(echo "$out" | sed -n "1,${iHeaderEnd}p")
 _body=$(  echo "$out" | sed -n "${iHeaderEnd},\$p")
 
+if [ -n "$sJq" ]; then
+    _body=$( jq "$sJq" <<< "$_body" 2>/dev/null )
+fi
+
 # echo "HEADER"; echo "$_header"
 # echo "BODY"; echo "$_body"
 
@@ -105,15 +113,15 @@ _body=$(  echo "$out" | sed -n "${iHeaderEnd},\$p")
 if [ -n "$iStatus" ]; then
     if ! grep -i "^HTTP/[0-9\.]* ${iStatus}" <<< "${_header}" >/dev/null; then
         ph.setStatus critical
-        sProblems+="- Statuscode is not [${iStatus}];\n"
+        sProblems+="- Http status is not [${iStatus}];\n"
     else
-        sOK+="- Statuscode is [${iStatus}];\n"
+        sOK+="- Http status is [${iStatus}];\n"
     fi
 fi
 
-
+# --- search in http response header
 if [ -n "$sHeader" ]; then
-    if ! grep -i "$sHeader" <<< "${_header}" >/dev/null; then
+    if ! grep -iE "$sHeader" <<< "${_header}" >/dev/null; then
         ph.setStatus critical
         sProblems+="- Header does not contain [${sHeader}];\n"
     else
@@ -122,8 +130,9 @@ if [ -n "$sHeader" ]; then
     
 fi
 
+# --- search in http response body
 if [ -n "$sBody" ]; then
-    if ! grep -i "$sBody" <<< "${_body}" >/dev/null; then
+    if ! grep -iE "$sBody" <<< "${_body}" >/dev/null; then
         ph.setStatus critical
         sProblems+="- Body does not contain [${sBody}];\n"
     else
@@ -132,16 +141,20 @@ if [ -n "$sBody" ]; then
     
 fi
 
-
+# --- output
 test -n "$sProblems" && sProblems="Problems:\n$sProblems\n"
 test -n "$sOK"       && sOK="Found:\n$sOK"
 
-ph.status "Url ${sUrl}"
+ph.status "$sLabel"
+
+if [ "$sLabel" != "$sMethod $sUrl" ]; then
+    echo "$sMethod $sUrl"
+fi
 echo
 echo -e "${sProblems}${sOK}"
-echo
 
-# echo "HEADER:"; echo "$_header"
+echo "HEADER:"; echo; echo "$_header"
+echo -n "Eapsed time: "; ph.showtimer
 
 ph.exit