115 lines
3.3 KiB
Bash
115 lines
3.3 KiB
Bash
#!/bin/bash
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#
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#/
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#/ Usage:
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#/ check-url.sh --proxy=<proxy-url> --warning=<level> --critical=<level> --help <URL>
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#/
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#/ Checks if URL is available
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#/
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#/ Options:
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#/ -p, --proxy=<proxy-url> The proxy server to use
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#/ -w, --warning=<sec> The amount of response time to trigger a warning (in sec)
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#/ -c, --critical=<sec> The amount of response time to trigger a critcal warning (in sec)
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#/ -h, --help Display this help message
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#/
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#/ Exit Codes:
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#/ 0 Everything OK
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#/ 1 Warning level exceeded
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#/ 2 Critical level exceeded
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#/ 3 Unknown status
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#/
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Usage() {
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grep '^#/' "${script_dir}/${script_name}" | sed 's/^#\/\w*//'
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}
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GetOptions() {
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# https://stackoverflow.com/a/29754866
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OPTIONS=p:w:c:h
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LONGOPTS=proxy:,warning:,critical:,help
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# -use ! and PIPESTATUS to get exit code with errexit set
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# -temporarily store output to be able to check for errors
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# -activate quoting/enhanced mode (e.g. by writing out “--options”)
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# -pass arguments only via -- "$@" to separate them correctly
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! PARSED=$(getopt --options=$OPTIONS --longoptions=$LONGOPTS --name "$0" -- "$@")
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if [[ ${PIPESTATUS[0]} -ne 0 ]]; then
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# e.g. return value is 1
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# then getopt has complained about wrong arguments to stdout
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Usage
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exit 2
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fi
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# read getopt's output this way to handle the quoting right:
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eval set -- "$PARSED"
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# now enjoy the options in order and nicely split until we see --
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while true; do
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case "$1" in
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-p|--proxy)
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proxy="$2"
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shift 2
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;;
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-w|--warning)
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warn="$2"
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shift 2
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;;
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-c|--critical)
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crit="$2"
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shift 2
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;;
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-h|--help)
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Usage
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exit 0
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;;
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--)
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shift
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break
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;;
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*)
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echo "URL UNKNOWN - ${1} is not a valid parameter"
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exit 3
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;;
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esac
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done
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if [ -z ${1+x} ]; then
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echo "URL UNKNOWN - url not given"
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exit 3
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else
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url=${1}
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fi
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}
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LC_NUMERIC="C"
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warn=1
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crit=2
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script_name=$(basename "${0}")
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script_dir=$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )
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url=''
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GetOptions "$@"
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eval $(curl -L -o /dev/null -s -w 'RESPONSE_CODE=%{response_code}\nRESPONSE_TIME=%{time_total}\nDNS_TIME=%{time_namelookup}\nCONNECT_TIME=%{time_connect}' ${proxy:+"--proxy" "$proxy"} $url)
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response_time=$(printf %.3f $(echo ${RESPONSE_TIME}))
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dns_time=$(printf %.3f $(echo ${DNS_TIME}))
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connect_time=$(printf %.3f $(echo ${CONNECT_TIME}))
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rdetail=""
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if (( $(echo "$RESPONSE_CODE != 200" | bc -l) )); then
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rval=2
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rmsg="CRITICAL"
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rdetail="$url was not available"
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elif (( $(echo "$RESPONSE_TIME < ${warn}" | bc -l) )); then
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rval=0
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rmsg="OK"
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elif (( $(echo "$RESPONSE_TIME < ${crit}" | bc -l) )); then
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rval=1
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rmsg="WARNING"
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else
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rval=2
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rmsg="CRITICAL"
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fi
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unit='s'
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echo "URL ${rmsg} - ${rdetail:+"$rdetail - "}Response code: ${RESPONSE_CODE} Response Time: ${response_time} DNS Lookup time: ${dns_time} Connect time: ${connect_time}|response=${response_time}${unit} dns-query=${dns_time}${unit} connect=${connect_time}${unit}"
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exit $rval
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