nagios site check, uses curl

check_http_wget

#!/bin/bash

exec 2>&1

[ -d /dev/shm -a -w /dev/shm ] && export TMPDIR=/dev/shm

# Parsing Input Parameters {{{
#####################################################################
allparams=$*
g_myname_pid=$$
myparams=""

if [ $# -eq 0 ]; then
    __die "No options specified"
fi

for myarg in ${allparams}
do
  arg=`printf '%s\n' $myarg | sed 's/^-//'`
  case $arg in
    u=*)         g_url=`echo $arg | sed 's/^u=//g'`       ;; # Url
    n=*)         g_not_present=`echo $arg | sed 's/n=//g'`       ;; # Line that shoud not be present
    m=*)         g_expect_string=`echo $arg | sed 's/m=//g'`       ;; # Line that shoud be present, match
    user=*)         g_user=`echo $arg | sed 's/^user=//g'`       ;; # username for basic auth user:password
    -)          : ;;
    *)              echo "$0: unrecognized action specified $arg" ; exit 1 ;;
  esac
  shift
done


### }}}



CONTENT=$( mktemp -t check_http_wget_c.XXXXXX )
LOG=$( mktemp -t check_http_wget_l.XXXXXX )

if [ ! -z $g_user ]; then
        GUSER="-u $g_user"
fi
c=$( curl --retry 2 --silent --show-error --location \
        --user-agent "non7top.ml" --max-time 30 \
        --output $CONTENT --stderr $LOG $GUSER \
        -w "%{time_total};%{time_starttransfer};%{response_code}\n" \
        $g_url )
res=$?

__time=$(printf "%4.2f\n" $(echo $c | awk -F";" '{print $1}' ) )
PERFDATA="time=${__time}s"

if [ $res -ne 0 ]; then
    wget_err=$( cat $LOG )
    echo "HTTP ERROR: Could't get $g_url ($wget_err) | $PERFDATA"
    exit 2
fi


__code=$(echo $c | awk -F";" '{print $3}')

PERFDATA="$PERFDATA code=$__code"
# Check that string is present
grep -q -i $g_expect_string $CONTENT
res=$?


if [ $res -eq 0 ]; then
    echo "HTTP OK: EXPR $g_expect_string FOUND on $g_url in $__time | $PERFDATA"
    rm -f $CONTENT $LOG
    exit 0
else
    echo "HTTP ERROR: EXPR $g_expect_string NOT FOUND on $g_url in $__time | $PERFDATA"
    exit 2
fi

echo "HTTP UNKNOWN: Looks like script error"
exit 3