mirror of
https://github.com/ivuorinen/dotfiles.git
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Ismo Vuorinen
961efec364
* feat: switch to biome, apply formatting, shellcheck * chore: apply cr comments * chore: few config tweaks, shellcheck hook now py-based * chore: lint fixes and pr comments * chore(lint): megalinter, and other fixes Signed-off-by: Ismo Vuorinen <ismo@ivuorinen.net>
108 lines
2.4 KiB
Bash
Executable File
108 lines
2.4 KiB
Bash
Executable File
#!/bin/sh
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#
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# About
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# -----
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# Check the expiry date of the SSL certificate on the given host.
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#
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# License
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# -------
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# Copyright (c) 2013-2015 by Steve Kemp. All rights reserved.
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#
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# This script is free software; you can redistribute it and/or modify it under
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# the same terms as Perl itself.
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#
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# The LICENSE file contains the full text of the license.
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# Simple function to show usage information, and exit.
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usage()
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{
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echo "Usage: $0 [-d] [-p 443] domain1.org domain2.com .. domainN"
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exit 0
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}
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# Default settings for flags set by the command-line arguments
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days=0
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port=443
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# Parse the argument(s) - i.e. look for "-d" / "-p 443".
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while getopts "h?dp:" opt; do
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case $opt in
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h)
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usage
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;;
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\?)
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usage
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;;
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d)
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days=1
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;;
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p)
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port=$OPTARG
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;;
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esac
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done
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shift $((OPTIND - 1))
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# Ensure we have some arguments
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if [ "$#" = "0" ]; then
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usage
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fi
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# For each domain-name on the command-line.
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for name in "$@"; do
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# Make a temporary file
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# Try GNU syntax first, fall back to BSD
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if tmp=$(mktemp 2> /dev/null) && [ -f "$tmp" ]; then
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# GNU mktemp succeeded
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:
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else
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# Try BSD syntax
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tmp=$(mktemp -t tmp)
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fi
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# Download the certificate
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if (! echo "" | openssl s_client -connect "$name:$port" > "$tmp" 2> /dev/null); then
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rm -f "$tmp"
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echo "Failed to get cert from https://$name:$port/"
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exit 3
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fi
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# Get the expiry date
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date=$(openssl x509 -in "$tmp" -noout -enddate | awk -F= '{print $2}')
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# Remove the temporary file
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rm -f "$tmp"
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# Convert the expiry date + todays date to seconds-past epoch
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# Try GNU syntax first, fall back to BSD
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if then=$(date --date "$date" +%s 2> /dev/null); then
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# GNU date succeeded
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:
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else
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# BSD date requires manual parsing
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year=$(echo "$date" | awk '{print $4}')
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month=$(echo "$date" | awk '{print $1}')
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day=$(echo "$date" | awk '{print $2}')
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hour=$(echo "$date" | awk '{print $3}' | awk -F: '{print $1}')
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minute=$(echo "$date" | awk '{print $3}' | awk -F: '{print $2}')
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second=$(echo "$date" | awk '{print $3}' | awk -F: '{print $3}')
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then=$(date -v"${year}"y -v"${month}" -v"${day}"d -v"${hour}"H -v"${minute}"M -v"${second}"S -u +%s)
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fi
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now=$(date +%s)
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# Day diff
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diff=$(("$then" - "$now"))
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diff=$((diff / 86400))
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# All done
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if [ "$days" = "1" ]; then
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echo "${name}: ${diff}"
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else
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echo "$name"
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echo " Expires: ${date}"
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echo " Days: ${diff}"
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fi
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done
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