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07070100000000000081A40000000200000002000000015AF2F36500003B46000000000000000000000000000000000000003200000000ssl-cert-check-3.31git.1525871461.698c199/LICENSEThe GNU General Public License, Version 2, June 1991 (GPLv2)
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07070100000001000081A40000000200000002000000015AF2F36500000D0A000000000000000000000000000000000000003400000000ssl-cert-check-3.31git.1525871461.698c199/README.md# SSL Certification Expiration Checker:

ssl-cert-check is a Bourne shell script that can be used to report on expiring SSL certificates. The script was designed to be run from cron and can e-mail warnings or log alerts through nagios.

# Usage:
<pre>
$ ./ssl-cert-check
Usage: ./ssl-cert-check [ -e email address ] [ -E sender email address ] [ -x days ] [-q] [-a] [-b] [-h] [-i] [-n] [-N] [-v]
       { [ -s common_name ] && [ -p port] } || { [ -f cert_file ] } || { [ -c cert file ] } || { [ -d cert dir ] }"

-a                : Send a warning message through E-mail
  -b                : Will not print header
  -c cert file      : Print the expiration date for the PEM or PKCS12 formatted certificate in cert file
  -d cert directory : Print the expiration date for the PEM or PKCS12 formatted certificates in cert directory
  -e E-mail address : E-mail address to send expiration notices
  -E E-mail address : Sender E-mail address
  -f cert file      : File with a list of FQDNs and ports
  -h                : Print this screen
  -i                : Print the issuer of the certificate
  -k password       : PKCS12 file password
  -n                : Run as a Nagios plugin
  -N                : Run as a Nagios plugin and output one line summary (implies -n, requires -f or -d)
  -p port           : Port to connect to (interactive mode)
  -s commmon name   : Server to connect to (interactive mode)
  -t type           : Specify the certificate type
  -q                : Don't print anything on the console
  -v                : Specify a specific protocol version to use (tls, ssl2, ssl3)
  -V                : Only print validation data
  -x days           : Certificate expiration interval (eg. if cert_date < days)
</pre>

# Examples:

Print the expiration times for one or more certificates listed in ssldomains:

<pre>
$ ssl-cert-check -f ssldomains
Host                                            Status       Expires      Days Left
----------------------------------------------- ------------ ------------ ----------
www.prefetch.com:443                            Valid        May 23 2006  218
mail.prefetch.net:993                           Valid        Jun 20 2006  246
gmail.google.com:443                            Valid        Jun 7 2006   233
www.sun.com:443                                 Valid        May 11 2009  1302
www.spotch.com:443                              Connection refused Unknown Unknown
</pre>

Check all certificates with file pattern "/etc/haproxy/ssl/\*.pem"

<pre>
$ ssl-cert-check -d "/etc/haproxy/ssl/*.pem"
Host                                            Status       Expires      Days
----------------------------------------------- ------------ ------------ ----
FILE:/etc/haproxy/ssl/example1.org.pem      Valid        Jan 6 2017   78                                 
FILE:/etc/haproxy/ssl/example2.org.pem      Valid        Jan 1 2017   73                                 
FILE:/etc/haproxy/ssl/example3.org.pem      Valid        Jan 6 2017   78                                 
</pre>

Send an e-mail to admin@prefetch.net if a domain listed in ssldomains will expire in the next 60-days:

<pre>
$ ssl-cert-check -a -f ssldomains -q -x 60 -e admin@prefetch.net
</pre>

# Additional Documentation

Documentation And Examples: http://prefetch.net/articles/checkcertificate.html
07070100000002000081ED0000000200000002000000015AF2F36500007B92000000000000000000000000000000000000003900000000ssl-cert-check-3.31git.1525871461.698c199/ssl-cert-check#!/usr/bin/env bash
#
# Program: SSL Certificate Check <ssl-cert-check>
#
# Source code home: https://github.com/Matty9191/ssl-cert-check
#
# Documentation: http://prefetch.net/articles/checkcertificate.html
#
# Author: Matty < matty91 at gmail dot com >
#
# Current Version: 3.30
#
# Revision History:
#
# Version 3.31
#  - Fixed the test for the -servername flag -- Kitson Consulting.
#
# Version 3.30
#  - Use highest returncode for Nagios output -- Marcel Pennewiss
#  - Set RETCODE to 3 (unknown) if a certificate file does not exist -- Marcel Pennewiss
#  - Add a "-d" option to specify a directory or file mask pattern -- Marcel Pennewiss
#  - Add a "-N" option to create summarized Nagios output -- Marcel Pennewiss
#  - Cleaned up many formatting -- Marcel Pennewiss
#
# Versione 3.29a
#  - Added option to specify email sender address
#
# Version 3.29
#  - Add the openssl -servername flag if it shows up in help.
#
# Version 3.28
#  - Added a DEBUG option to assist with debugging folks who use the script
#
# Version 3.27
#  - Allow white spaces to exist in the certificate file list
#  - Add an additional check to pick up bad / non-existent certificates
#  - Add a check to look for the existence of a mail program. Error out if it's not present.
#  - Enable the TLS -servername extension by default - Juergen Knaack & Johan Denoyer
#
# Version 3.26
#  - Allow the certificate type (PEM, DER, NET) to be passed on the command line
#
# Version 3.25
#   - Check for "no route to host" errors -- Dan Doyle
#   - Set RETCODE to 3 (unknown) if a connection error occurs -- Dan Doyle
#   - Documentation fixes
#
# Version 3.24
#   - Utilize the -clcerts option to limit the results to client certificates - Eitan Katznelson
#
# Version 3.23
#   - Fixed typo in date2julian routine -- Ken Cook
#
# Version 3.22
#   - Change the validation option to "-V"
#   - Add a "-v" option to specify a specific protocol version (ssl2, ssl3 or tls)
#
# Version 3.21
#   - Adjust e-mail checking to avoid exiting if notifications aren't enabled -- Nick Anderson
#   - Added the number of days until expiration to the Nagios output -- Nick Anderson
#
# Version 3.20
#   - Fixed a bug in certificate length checking -- Tim Nowaczyk
#
# Version 3.19
#   - Added check to verify the certificate retrieved is valid
#
# Version 3.18
#   - Add support for connecting to FTP servers -- Paul A Sand
#
# Version 3.17
#   - Add support for connecting to imap servers -- Joerg Pareigis
#
# Version 3.16
#   - Add support for connecting to the mail sbmission port -- Luis E. Munoz
#
# Version 3.15
#   - Adjusted the file checking logic to use the correct certificate -- Maciej Szudejko
#   - Add sbin to the default search paths for OpenBSD compatibility -- Alex Popov
#   - Use cut instead of substring processing to ensure compatibility -- Alex Popov
#
# Version 3.14
#   - Fixed the Common Name parser to handle DN's where the CN is not the last item
#     eg. EmailAddr -- Jason Brothers
#   - Added the ability to grab the serial number -- Jason Brothers
#   - Added the "-b" option to print results without a header -- Jason Brothers
#   - Added the "-v" option for certificate validation -- Jason Brothers
#
# Version 3.13
#   - Updated the subject line to include the hostname as well as
#     the common name embedded in the X509 certificate (if it's
#     available) -- idea proposed by Mike Burns
#
#  Version 3.12
#   - Updated the license to allow redistribution and modification
#
#  Version 3.11
#   - Added ability to comment out lines in files passed
#     to the "-f" option -- Brett Stauner
#   - Fixed comment next to file processing logic
#
#  Version 3.10
#   - Fixed POP3 port -- Simon Matter
#
#  Version 3.9
#    - Switched binary location logic to use which utility
#
#  Version 3.8
#    - Fixed display on 80 column displays
#    - Cleaned up the formatting
#
#  Version 3.7
#    - Fixed bug in NAGIOS tests -- Ben Allen
#
#  Version 3.6
#    - Added support for certificates stored in PKCS#12 databases -- Ken Gallo
#    - Cleaned up comments
#    - Adjusted variables to be more consistent
#
#  Version 3.5
#    - Added support for NAGIOS -- Quanah Gibson-Mount
#    - Added additional checks for mail -- Quanah Gibson-Mount
#    - Convert tabs to spaces -- Quanah Gibson-Mount
#    - Cleaned up usage() routine
#    - Added additional checks for openssl
#
#  Version 3.4
#   - Added a missing "{" to line 364 -- Ken Gallo
#   - Move mktemp to the start of the main body to avoid errors
#   - Adjusted default binary paths to make sure the script just works
#     w/ Solaris, BSD and Linux hosts
#
#  Version 3.3
#   - Added common name from X.509 certificate file to E-mail body / header -- Doug Curtis
#   - Fixed several documentation errors
#   - Use mktemp to create temporary files
#   - Convert printf, sed and awk to variables
#   - Check for printf, sed, awk and mktemp binaries
#   - Add additional logic to make sure mktemp returned a valid temporary file
#
#  Version 3.2
#   - Added option to list certificates in the file passed to "-f".
#
#  Version 3.1
#   - Added handling for starttls for smtp -- Marco Amrein
#   - Added handling for starttls for pop3 (without s) -- Marco Amrein
#   - Removed extra spacing at end of script
#
#  Version 3.0
#   - Added "-i" option to print certificate issuer
#   - Removed $0 from Subject line of outbound e-mails
#   - Fixed some typographical errors
#   - Removed redundant "-b" option
#
#  Version 2.0
#    - Fixed an issue with e-mails formatting incorrectly
#    - Added additional space to host column -- Darren-Perot Spruell
#    - Replaced GNU date dependency with CHRIS F. A. JOHNSON's
#      date2julian shell function. This routine can be found on
#      page 170 of Chris's book "Shell Scripting Recipes: A
#      Problem-Solution Approach," ISBN #1590594711. Julian function
#      was created based on a post to comp.unix.shell by Tapani Tarvainen.
#    - Cleaned up function descriptions
#    - Removed several lines of redundant code
#    - Adjusted the help message
#
#   Version 1.1
#    - Added "-c" flag to report expiration status of a PEM encoded
#      certificate -- Hampus Lundqvist
#    - Updated the prints messages to display the reason a connection
#      failed (connection refused, connection timeout, bad cert, etc)
#    - Updated the GNU date checking routines
#    - Added checks for each binary required
#    - Added checks for connection timeouts
#    - Added checks for GNU date
#    - Added a "-h" option
#    - Cleaned up the documentation
#
#  Version 1.0
#      Initial Release
#
# Last Updated: 12-12-2016
#
# Purpose:
#  ssl-cert-check checks to see if a digital certificate in X.509 format
#  has expired. ssl-cert-check can be run in interactive and batch mode,
#  and provides facilities to alarm if a certificate is about to expire.
#
# License:
#  This program is free software; you can redistribute it and/or modify
#  it under the terms of the GNU General Public License as published by
#  the Free Software Foundation; either version 2 of the License, or
#  (at your option) any later version.
#
#  This program is distributed in the hope that it will be useful,
#  but WITHOUT ANY WARRANTY; without even the implied warranty of
#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
#  GNU General Public License for more details.
#
# Requirements:
#   Requires openssl
#
# Installation:
#   Copy the shell script to a suitable location
#
# Tested platforms:
#  -- Solaris 9 using /bin/bash
#  -- Solaris 10 using /bin/bash
#  -- OS X 10.4.2 using /bin/bash
#  -- OpenBSD using /bin/sh
#  -- FreeBSD using /bin/sh
#  -- Centos Linux 3, 4, 5 & 6 using /bin/bash
#  -- Redhat Enterprise Linux 3, 4, 5 & 6 using /bin/bash
#  -- Gentoo using /bin/bash
#
# Usage:
#  Refer to the usage() sub-routine, or invoke ssl-cert-check
#  with the "-h" option.
#
# Examples:
#   Please refer to the following site for documentation and examples:
#   http://prefetch.net/articles/checkcertificate.html

PATH=/bin:/usr/bin:/sbin:/usr/sbin:/usr/local/bin:/usr/local/ssl/bin:/usr/sfw/bin
export PATH

# Who to page when an expired certificate is detected (cmdline: -e)
ADMIN="root"

# Email sender address for alarm notifications
SENDER="postmaster@localhost.localdomain"

# Number of days in the warning threshhold (cmdline: -x)
WARNDAYS=30

# If QUIET is set to TRUE, don't print anything on the console (cmdline: -q)
QUIET="FALSE"

# Don't send E-mail by default (cmdline: -a)
ALARM="FALSE"

# Don't run as a Nagios plugin by default (cmdline: -n)
NAGIOS="FALSE"

# Don't summarize Nagios output by default (cmdline: -N)
NAGIOSSUMMARY="FALSE"

# NULL out the PKCSDBPASSWD variable for later use (cmdline: -k)
PKCSDBPASSWD=""

# Type of certificate (PEM, DER, NET) (cmdline: -t)
CERTTYPE="pem"

# Protocol version to use (cmdline: -v)
VERSION=""

# Enable debugging
DEBUG=0

# Location of system binaries
AWK=$(which awk)
DATE=$(which date)
GREP=$(which grep)
OPENSSL=$(which openssl)
PRINTF=$(which printf)
SED=$(which sed)
MKTEMP=$(which mktemp)
FIND=$(which find)

# Try to find a mail client
if [ -f /usr/bin/mailx ]
then
    MAIL="/usr/bin/mailx"
    MAILMODE="mailx"
elif [ -f /bin/mail ]
then
    MAIL="/bin/mail"
    MAILMODE="mail"
elif [ -f /usr/bin/mail ]
then
    MAIL="/usr/bin/mail"
    MAILMODE="mail"
elif [ -f /sbin/mail ]
then
    MAIL="/sbin/mail"
    MAILMODE="mail"
elif [ -f /usr/sbin/mail ]
then
    MAIL="/usr/sbin/mail"
    MAILMODE="mail"
elif [ -f /usr/sbin/sendmail ]
then
    MAIL="/usr/sbin/sendmail"
    MAILMODE="sendmail"    
else
    MAIL="cantfindit"
    MAILMODE="cantfindit"
fi

# Return code used by nagios. Initialize to 0.
RETCODE=0

# Certificate counters and minimum difference. Initialize to 0.
SUMMARY_VALID=0
SUMMARY_WILL_EXPIRE=0
SUMMARY_EXPIRED=0
SUMMARY_MIN_DIFF=0
SUMMARY_MIN_DATE=
SUMMARY_MIN_HOST=
SUMMARY_MIN_PORT=

# Set the default umask to be somewhat restrictive
umask 077

#####################################################
### Send email
### Accepts three parameters:
###  $1 -> sender email address
###  $2 -> email to send mail
###  $3 -> Subject
###  $4 -> Message
#####################################################
send_mail() {

FROM=${1}
    TO=${2}
    SUBJECT=${3}
    MSG=${4}

case "${MAILMODE}" in
        "mail" | "mailx")
            echo "$MSG" | ${MAIL} -r $FROM -s "$SUBJECT" $TO
            ;;
        "sendmail")
            (echo "Subject:$SUBJECT" && echo "TO:$TO" && echo "FROM:$FROM" && echo "$MSG") | ${MAIL} $TO
            ;;
        "*")
            echo "ERROR: You enabled automated alerts, but the mail binary could not be found."
            echo "FIX: Please modify the ${MAIL} and ${$MAILMODE} variable in the program header."
            exit 1
            ;;
    esac
}

#############################################################################
# Purpose: Convert a date from MONTH-DAY-YEAR to Julian format
# Acknowledgements: Code was adapted from examples in the book
#                   "Shell Scripting Recipes: A Problem-Solution Approach"
#                   ( ISBN 1590594711 )
# Arguments:
#   $1 -> Month (e.g., 06)
#   $2 -> Day   (e.g., 08)
#   $3 -> Year  (e.g., 2006)
#############################################################################
date2julian() {

if [ "${1}" != "" ] && [ "${2}" != "" ] && [ "${3}" != "" ]
    then
        ## Since leap years add aday at the end of February,
        ## calculations are done from 1 March 0000 (a fictional year)
        d2j_tmpmonth=$((12 * ${3} + ${1} - 3))

## If it is not yet March, the year is changed to the previous year
        d2j_tmpyear=$(( ${d2j_tmpmonth} / 12))

## The number of days from 1 March 0000 is calculated
        ## and the number of days from 1 Jan. 4713BC is added
        echo $(( (734 * ${d2j_tmpmonth} + 15) / 24
                 - 2 * ${d2j_tmpyear} + ${d2j_tmpyear}/4
                 - ${d2j_tmpyear}/100 + ${d2j_tmpyear}/400 + $2 + 1721119 ))
    else
        echo 0
    fi
}

#############################################################################
# Purpose: Convert a string month into an integer representation
# Arguments:
#   $1 -> Month name (e.g., Sep)
#############################################################################
getmonth()
{
    case ${1} in
        Jan) echo 1 ;;
        Feb) echo 2 ;;
        Mar) echo 3 ;;
        Apr) echo 4 ;;
        May) echo 5 ;;
        Jun) echo 6 ;;
        Jul) echo 7 ;;
        Aug) echo 8 ;;
        Sep) echo 9 ;;
        Oct) echo 10 ;;
        Nov) echo 11 ;;
        Dec) echo 12 ;;
          *) echo 0 ;;
    esac
}

#############################################################################
# Purpose: Calculate the number of seconds between two dates
# Arguments:
#   $1 -> Date #1
#   $2 -> Date #2
#############################################################################
date_diff()
{
    if [ "${1}" != "" ] && [ "${2}" != "" ]
    then
        echo $((${2} - ${1}))
    else
        echo 0
    fi
}

#####################################################################
# Purpose: Print a line with the expiraton interval
# Arguments:
#   $1 -> Hostname
#   $2 -> TCP Port
#   $3 -> Status of certification (e.g., expired or valid)
#   $4 -> Date when certificate will expire
#   $5 -> Days left until the certificate will expire
#   $6 -> Issuer of the certificate
#####################################################################
prints()
{
    if [ "${NAGIOSSUMMARY}" == "TRUE" ]
    then
        return
    fi

if [ "${QUIET}" != "TRUE" ] && [ "${ISSUER}" = "TRUE" ] && [ "${VALIDATION}" != "TRUE" ]
    then
        MIN_DATE=$(echo $4 | ${AWK} '{ print $1, $2, $4 }')
        if [ "${NAGIOS}" == "TRUE" ]
        then
            ${PRINTF} "%-35s %-17s %-8s %-11s %-4s %-30s\n" "$1:$2" "$6" "$3" "$MIN_DATE" \|days="$5"
        else
            ${PRINTF} "%-35s %-17s %-8s %-11s %-4s %-30s\n" "$1:$2" "$6" "$3" "$MIN_DATE" "$5"
        fi
    elif [ "${QUIET}" != "TRUE" ] && [ "${ISSUER}" = "TRUE" ] && [ "${VALIDATION}" == "TRUE" ]
    then
        ${PRINTF} "%-35s %-35s %-32s %-17s\n" "$1:$2" "$7" "$8" "$6"

elif [ "${QUIET}" != "TRUE" ] && [ "${VALIDATION}" != "TRUE" ]
    then
        MIN_DATE=$(echo $4 | ${AWK} '{ print $1, $2, $4 }')
        if [ "${NAGIOS}" == "TRUE" ]
        then
            ${PRINTF} "%-47s %-12s %-12s %-4s %-30s\n" "$1:$2" "$3" "$MIN_DATE" \|days="$5"
        else
            ${PRINTF} "%-47s %-12s %-12s %-4s %-30s\n" "$1:$2" "$3" "$MIN_DATE" "$5"
        fi
    elif [ "${QUIET}" != "TRUE" ] && [ "${VALIDATION}" == "TRUE" ]
    then
        ${PRINTF} "%-35s %-35s %-32s\n" "$1:$2" "$7" "$8"
    fi
}

####################################################
# Purpose: Print a heading with the relevant columns
# Arguments:
#   None
####################################################
print_heading()
{
    if [ "${NOHEADER}" != "TRUE" ]
    then
        if [ "${QUIET}" != "TRUE" ] && [ "${ISSUER}" = "TRUE" ] && [ "${NAGIOS}" != "TRUE" ] && [ "${VALIDATION}" != "TRUE" ]
        then
            ${PRINTF} "\n%-35s %-17s %-8s %-11s %-4s\n" "Host" "Issuer" "Status" "Expires" "Days"
            echo "----------------------------------- ----------------- -------- ----------- ----"

elif [ "${QUIET}" != "TRUE" ] && [ "${ISSUER}" = "TRUE" ] && [ "${NAGIOS}" != "TRUE" ] && [ "${VALIDATION}" == "TRUE" ]
        then
            ${PRINTF} "\n%-35s %-35s %-32s %-17s\n" "Host" "Common Name" "Serial #" "Issuer"
            echo "----------------------------------- ----------------------------------- -------------------------------- -----------------"

elif [ "${QUIET}" != "TRUE" ] && [ "${NAGIOS}" != "TRUE" ] && [ "${VALIDATION}" != "TRUE" ]
        then
            ${PRINTF} "\n%-47s %-12s %-12s %-4s\n" "Host" "Status" "Expires" "Days"
            echo "----------------------------------------------- ------------ ------------ ----"

elif [ "${QUIET}" != "TRUE" ] && [ "${NAGIOS}" != "TRUE" ] && [ "${VALIDATION}" == "TRUE" ]
        then
            ${PRINTF} "\n%-35s %-35s %-32s\n" "Host" "Common Name" "Serial #"
            echo "----------------------------------- ----------------------------------- --------------------------------"
        fi
    fi
}

####################################################
# Purpose: Print a summary for nagios
# Arguments:
#   None
####################################################
print_summary()
{
    if [ "${NAGIOSSUMMARY}" != "TRUE" ]
    then
        return
    fi

if [ ${SUMMARY_WILL_EXPIRE} -eq 0 ] && [ ${SUMMARY_EXPIRED} -eq 0 ]
    then
        ${PRINTF} "%s valid certificate(s)|days=%s\n" "${SUMMARY_VALID}" "${SUMMARY_MIN_DIFF}"

elif [ ${SUMMARY_EXPIRED} -ne 0 ]
    then
        ${PRINTF} "%s certificate(s) expired (%s:%s on %s)|days=%s\n" "${SUMMARY_EXPIRED}" "${SUMMARY_MIN_HOST}" "${SUMMARY_MIN_PORT}" "${SUMMARY_MIN_DATE}" "${SUMMARY_MIN_DIFF}"

elif [ ${SUMMARY_WILL_EXPIRE} -ne 0 ]
    then
        ${PRINTF} "%s certificate(s) will expire (%s:%s on %s)|days=%s\n" "${SUMMARY_WILL_EXPIRE}" "${SUMMARY_MIN_HOST}" "${SUMMARY_MIN_PORT}" "${SUMMARY_MIN_DATE}" "${SUMMARY_MIN_DIFF}"

fi
}

#############################################################
# Purpose: Set returncode to value if current value is lower
# Arguments:
#   $1 -> New returncorde
#############################################################
set_returncode()
{
    if [ ${RETCODE} -lt ${1} ]
    then
        RETCODE=${1}
    fi
}

########################################################################
# Purpose: Set certificate counters and informations for nagios summary
# Arguments:
#   $1 -> Status of certificate (0: valid, 1: will expire, 2: expired)
#   $2 -> Hostname
#   $3 -> TCP Port
#   $4 -> Date when certificate will expire
#   $5 -> Days left until the certificate will expire
########################################################################
set_summary()
{
    if [ ${1} -eq 0 ]
    then
        SUMMARY_VALID=$((SUMMARY_VALID+1))

elif [ ${1} -eq 1 ]
    then
        SUMMARY_WILL_EXPIRE=$((SUMMARY_WILL_EXPIRE+1))

else
        SUMMARY_EXPIRED=$((SUMMARY_EXPIRED+1))
    fi

if [ ${5} -lt ${SUMMARY_MIN_DIFF} ] || [ ${SUMMARY_MIN_DIFF} -eq 0 ]
    then
        SUMMARY_MIN_DATE=${4}
        SUMMARY_MIN_DIFF=${5}
        SUMMARY_MIN_HOST=${2}
        SUMMARY_MIN_PORT=${3}
    fi
}

##########################################
# Purpose: Describe how the script works
# Arguments:
#   None
##########################################
usage()
{
    echo "Usage: $0 [ -e email address ] [-E sender email address] [ -x days ] [-q] [-a] [-b] [-h] [-i] [-n] [-N] [-v]"
    echo "       { [ -s common_name ] && [ -p port] } || { [ -f cert_file ] } || { [ -c cert file ] } || { [ -d cert dir ] }"
    echo ""
    echo "  -a                : Send a warning message through E-mail"
    echo "  -b                : Will not print header"
    echo "  -c cert file      : Print the expiration date for the PEM or PKCS12 formatted certificate in cert file"
    echo "  -d cert directory : Print the expiration date for the PEM or PKCS12 formatted certificates in cert directory"
    echo "  -e E-mail address : E-mail address to send expiration notices"
    echo "  -E E-mail sender  : E-mail address of the sender"
    echo "  -f cert file      : File with a list of FQDNs and ports"
    echo "  -h                : Print this screen"
    echo "  -i                : Print the issuer of the certificate"
    echo "  -k password       : PKCS12 file password"
    echo "  -n                : Run as a Nagios plugin"
    echo "  -N                : Run as a Nagios plugin and output one line summary (implies -n, requires -f or -d)"
    echo "  -p port           : Port to connect to (interactive mode)"
    echo "  -s commmon name   : Server to connect to (interactive mode)"
    echo "  -t type           : Specify the certificate type"
    echo "  -q                : Don't print anything on the console"
    echo "  -v                : Specify a specific protocol version to use (tls, ssl2, ssl3)"
    echo "  -V                : Only print validation data"
    echo "  -x days           : Certificate expiration interval (eg. if cert_date < days)"
    echo ""
}

##########################################################################
# Purpose: Connect to a server ($1) and port ($2) to see if a certificate
#          has expired
# Arguments:
#   $1 -> Server name
#   $2 -> TCP port to connect to
##########################################################################
check_server_status() {

if [ "_${2}" = "_smtp" -o "_${2}" = "_25" ]
    then
        TLSFLAG="-starttls smtp"

elif [ "_${2}" = "_ftp" -o "_${2}" = "_21" ]
    then
        TLSFLAG="-starttls ftp"

elif [ "_${2}" = "_pop3" -o "_${2}" = "_110" ]
    then
        TLSFLAG="-starttls pop3"

elif [ "_${2}" = "_imap" -o "_${2}" = "_143" ]
    then
        TLSFLAG="-starttls imap"

elif [ "_${2}" = "_submission" -o "_${2}" = "_587" ]
    then
        TLSFLAG="-starttls smtp -port ${2}"
    else
        TLSFLAG=""
    fi

if [ "${VERSION}" != "" ]
    then
        VER="-${VERSION}"
    fi

if [ "${TLSSERVERNAME}" = "TRUE" ]
    then
         TLSFLAG="${TLSFLAG} -servername $1"
    fi

echo "" | ${OPENSSL} s_client -crlf ${VER} -connect ${1}:${2} ${TLSFLAG} 2> ${ERROR_TMP} 1> ${CERT_TMP}

if ${GREP} -i "Connection refused" ${ERROR_TMP} > /dev/null
    then
        prints ${1} ${2} "Connection refused" "Unknown"
        set_returncode 3

elif ${GREP} -i "No route to host" ${ERROR_TMP} > /dev/null
    then
        prints ${1} ${2} "No route to host" "Unknown"
        set_returncode 3

elif ${GREP} -i "gethostbyname failure" ${ERROR_TMP} > /dev/null
    then
        prints ${1} ${2} "Cannot resolve domain" "Unknown"
        set_returncode 3

elif ${GREP} -i "Operation timed out" ${ERROR_TMP} > /dev/null
    then
        prints ${1} ${2} "Operation timed out" "Unknown"
        set_returncode 3

elif ${GREP} -i "ssl handshake failure" ${ERROR_TMP} > /dev/null
    then
        prints ${1} ${2} "SSL handshake failed" "Unknown"
        set_returncode 3

elif ${GREP} -i "connect: Connection timed out" ${ERROR_TMP} > /dev/null
    then
        prints ${1} ${2} "Connection timed out" "Unknown"
        set_returncode 3

else
        check_file_status ${CERT_TMP} $1 $2
    fi
}

#####################################################
### Check the expiration status of a certificate file
### Accepts three parameters:
###  $1 -> certificate file to process
###  $2 -> Server name
###  $3 -> Port number of certificate
#####################################################
check_file_status() {

CERTFILE=${1}
    HOST=${2}
    PORT=${3}

### Check to make sure the certificate file exists
    if [ ! -r ${CERTFILE} ] || [ ! -s ${CERTFILE} ]
    then
        echo "ERROR: The file named ${CERTFILE} is unreadable or doesn't exist"
        echo "ERROR: Please check to make sure the certificate for ${HOST}:${PORT} is valid"
        set_returncode 3
        return
    fi

### Grab the expiration date from the X.509 certificate
    if [ "${PKCSDBPASSWD}" != "" ]
    then
        # Extract the certificate from the PKCS#12 database, and
        # send the informational message to /dev/null
        ${OPENSSL} pkcs12 -nokeys -in ${CERTFILE} \
                   -out ${CERT_TMP} -clcerts -password pass:${PKCSDBPASSWD} 2> /dev/null

# Extract the expiration date from the certificate
        CERTDATE=$(${OPENSSL} x509 -in ${CERT_TMP} -enddate -noout | \
                 ${SED} 's/notAfter\=//')

# Extract the issuer from the certificate
        CERTISSUER=$(${OPENSSL} x509 -in ${CERT_TMP} -issuer -noout | \
                   ${AWK} 'BEGIN {RS="/" } $0 ~ /^O=/ \
                                 { print substr($0,3,17)}')

### Grab the common name (CN) from the X.509 certificate
        COMMONNAME=$(${OPENSSL} x509 -in ${CERT_TMP} -subject -noout | \
                   ${SED} -e 's/.*CN=//' | \
                   ${SED} -e 's/\/.*//')

### Grab the serial number from the X.509 certificate
        SERIAL=$(${OPENSSL} x509 -in ${CERT_TMP} -serial -noout | \
                   ${SED} -e 's/serial=//')
    else
        # Extract the expiration date from the ceriticate
        CERTDATE=$(${OPENSSL} x509 -in ${CERTFILE} -enddate -noout -inform ${CERTTYPE} | \
                 ${SED} 's/notAfter\=//')

# Extract the issuer from the certificate
        CERTISSUER=$(${OPENSSL} x509 -in ${CERTFILE} -issuer -noout -inform ${CERTTYPE} | \
                   ${AWK} 'BEGIN {RS="/" } $0 ~ /^O=/ { print substr($0,3,17)}')

### Grab the common name (CN) from the X.509 certificate
        COMMONNAME=$(${OPENSSL} x509 -in ${CERTFILE} -subject -noout -inform ${CERTTYPE} | \
                   ${SED} -e 's/.*CN=//' | \
                   ${SED} -e 's/\/.*//')

### Grab the serial number from the X.509 certificate
        SERIAL=$(${OPENSSL} x509 -in ${CERTFILE} -serial -noout -inform ${CERTTYPE} | \
                   ${SED} -e 's/serial=//')
    fi

### Split the result into parameters, and pass the relevant pieces to date2julian
    set -- ${CERTDATE}
    MONTH=$(getmonth ${1})

# Convert the date to seconds, and get the diff between NOW and the expiration date
    CERTJULIAN=$(date2julian ${MONTH#0} ${2#0} ${4})
    CERTDIFF=$(date_diff ${NOWJULIAN} ${CERTJULIAN})

if [ ${CERTDIFF} -lt 0 ]
    then
        if [ "${ALARM}" = "TRUE" ]
        then
            send_mail ${SENDER} ${ADMIN} "Certificate for ${HOST} \"(CN: ${COMMONNAME})\" has expired!" \
                "The SSL certificate for ${HOST} \"(CN: ${COMMONNAME})\" has expired!"
        fi

prints ${HOST} ${PORT} "Expired" "${CERTDATE}" "${CERTDIFF}" "${CERTISSUER}" "${COMMONNAME}" "${SERIAL}"
        RETCODE_LOCAL=2

elif [ ${CERTDIFF} -lt ${WARNDAYS} ]
    then
        if [ "${ALARM}" = "TRUE" ]
        then
            send_mail ${SENDER} ${ADMIN} "Certificate for ${HOST} \"(CN: ${COMMONNAME})\" will expire in ${WARNDAYS}-days or less" \
                "The SSL certificate for ${HOST} \"(CN: ${COMMONNAME})\" will expire on ${CERTDATE}"
        fi
        prints ${HOST} ${PORT} "Expiring" "${CERTDATE}" "${CERTDIFF}" "${CERTISSUER}" "${COMMONNAME}" "${SERIAL}"
        RETCODE_LOCAL=1

else
        prints ${HOST} ${PORT} "Valid" "${CERTDATE}" "${CERTDIFF}" "${CERTISSUER}" "${COMMONNAME}" "${SERIAL}"
        RETCODE_LOCAL=0
    fi

set_returncode ${RETCODE_LOCAL}
    MIN_DATE=$(echo ${CERTDATE} | ${AWK} '{ print $1, $2, $4 }')
    set_summary ${RETCODE_LOCAL} ${HOST} ${PORT} "${MIN_DATE}" ${CERTDIFF}
}

#################################
### Start of main program
#################################
while getopts abinNv:e:E:f:c:d:hk:p:s:t:qx:V option
do
    case "${option}"
    in
        a) ALARM="TRUE";;
        b) NOHEADER="TRUE";;
        c) CERTFILE=${OPTARG};;
        d) CERTDIRECTORY=${OPTARG};;
        e) ADMIN=${OPTARG};;
	E) SENDER=${OPTARG};;
        f) SERVERFILE=$OPTARG;;
        h) usage
           exit 1;;
        i) ISSUER="TRUE";;
        k) PKCSDBPASSWD=${OPTARG};;
        n) NAGIOS="TRUE";;
        N) NAGIOS="TRUE"
           NAGIOSSUMMARY="TRUE";;
        p) PORT=$OPTARG;;
        s) HOST=$OPTARG;;
        t) CERTTYPE=$OPTARG;;
        q) QUIET="TRUE";;
        v) VERSION=$OPTARG;;
        V) VALIDATION="TRUE";;
        x) WARNDAYS=$OPTARG;;
       \?) usage
           exit 1;;
    esac
done

### Check to make sure a openssl utility is available
if [ ! -f ${OPENSSL} ]
then
    echo "ERROR: The openssl binary does not exist in ${OPENSSL}."
    echo "FIX: Please modify the \${OPENSSL} variable in the program header."
    exit 1
fi

### Check to make sure a date utility is available
if [ ! -f ${DATE} ]
then
    echo "ERROR: The date binary does not exist in ${DATE} ."
    echo "FIX: Please modify the \${DATE} variable in the program header."
    exit 1
fi

### Check to make sure a grep and find utility is available
if [ ! -f ${GREP} ] || [ ! -f ${FIND} ]
then
    echo "ERROR: Unable to locate the greb and find binary."
    echo "FIX: Please modify the \${GREP} and \${FIND} variables in the program header."
    exit 1
fi

### Check to make sure the mktemp and printf utilities are available
if [ ! -f ${MKTEMP} ] || [ ! -f ${PRINTF} ]
then
    echo "ERROR: Unable to locate the mktemp or printf binary."
    echo "FIX: Please modify the \${MKTEMP} and \${PRINTF} variables in the program header."
    exit 1
fi

### Check to make sure the sed and awk binaries are available
if [ ! -f ${SED} ] || [ ! -f ${AWK} ]
then
    echo "ERROR: Unable to locate the sed or awk binary."
    echo "FIX: Please modify the \${SED} and \${AWK} variables in the program header."
    exit 1
fi

### Check to make sure a mail client is available it automated notifications are requested
if [ "${ALARM}" = "TRUE" ] && [ ! -f ${MAIL} ]
then
    echo "ERROR: You enabled automated alerts, but the mail binary could not be found."
    echo "FIX: Please modify the ${MAIL} variable in the program header."
    exit 1
fi

# Send along the servername when TLS is used
if ${OPENSSL} s_client -help 2>&1 | grep '-servername' > /dev/null
then
    TLSSERVERNAME="TRUE"
else
    TLSSERVERNAME="FALSE"
fi

# Place to stash temporary files
CERT_TMP=$($MKTEMP /var/tmp/cert.XXXXXX)
ERROR_TMP=$($MKTEMP /var/tmp/error.XXXXXX)

### Baseline the dates so we have something to compare to
MONTH=$(${DATE} "+%m")
DAY=$(${DATE} "+%d")
YEAR=$(${DATE} "+%Y")
NOWJULIAN=$(date2julian ${MONTH#0} ${DAY#0} ${YEAR})

### Touch the files prior to using them
if [ ! -z "${CERT_TMP}" ] && [ ! -z "${ERROR_TMP}" ]
then
    touch ${CERT_TMP} ${ERROR_TMP}
else
    echo "ERROR: Problem creating temporary files"
    echo "FIX: Check that mktemp works on your system"
    exit 1
fi

### If a HOST and PORT were passed on the cmdline, use those values
if [ "${HOST}" != "" ] && [ "${PORT}" != "" ]
then
    print_heading
    check_server_status "${HOST}" "${PORT}"
    print_summary

### If a file is passed to the "-f" option on the command line, check
### each certificate or server / port combination in the file to see if
### they are about to expire
elif [ -f "${SERVERFILE}" ]
then
    print_heading

IFS=$'\n'
    for LINE in `egrep -v '(^#|^$)' ${SERVERFILE}`
    do
        HOST=${LINE%% *}
        PORT=${LINE#* }
        IFS=" "
        if [ "$PORT" = "FILE" ]
        then
            check_file_status ${HOST} "FILE" "${HOST}"
        else
            check_server_status "${HOST}" "${PORT}"
        fi
    done
    IFS=${OLDIFS}
    print_summary

### Check to see if the certificate in CERTFILE is about to expire
elif [ "${CERTFILE}" != "" ]
then
    print_heading
    check_file_status ${CERTFILE} "FILE" "${CERTFILE}"
    print_summary

### Check to see if the certificates in CERTDIRECTORY are about to expire
elif [ "${CERTDIRECTORY}" != "" ] && (${FIND} -L ${CERTDIRECTORY} -type f > /dev/null 2>&1)
then
    print_heading
    for FILE in `${FIND} -L ${CERTDIRECTORY} -type f`; do
        check_file_status ${FILE} "FILE" "${FILE}"
    done
    print_summary

### There was an error, so print a detailed usage message and exit
else
    usage
    exit 1
fi

### Remove the temporary files
if [ $DEBUG == 1 ]
then
    echo "DEBUG: Certificate temporary file:"
    cat ${CERT_TMP}
    echo "DEBUG: Runtime information file:"
    cat ${ERROR_TMP}
fi

rm -f ${CERT_TMP} ${ERROR_TMP}

### Exit with a success indicator
if [ "${NAGIOS}" = "TRUE" ]
then
    exit $RETCODE
else
    exit 0
fi
07070100000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000B00000000TRAILER!!!100 blocks

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File _service:obs_scm:ssl-cert-check-3.31git.1525871461.698c199.obscpio of Package ssl-cert-check (Revision 716e282c6fc0df555ece321a50470139)

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