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marcus |
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#!/bin/bash
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#
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# Script that checks if given sites are up and sends an e-mail if they are not.
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# You should not run this script on the same servers your monitoring,
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# neither should your e-mail account reside on a server behind same firewall as the sites your checking.
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#
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# Developer: oSource Development
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# DevTeam: Marcus Uddenhed
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# Version: 0.5.0
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# Web: http://www.osource.se
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# Updated: 2017-08-31
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#
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# Requires: mailx (http://heirloom.sourceforge.net/mailx.html)
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#
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# Licensed under BSDL license, see license information on our homepage.
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#
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#### Global variables ####
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# Sites
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checkSite[1]="https://"; # Add sites that you want to monitor, can be as many as you want.
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checkSite[2]="http://";
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# Retries
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rInterval=8 # How many times should it retry until it set the site as down.
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rTime=20 # How many seconds shold it wait between retries.
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# Mail
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sendMail=yes # Should i send an e-mail with failed sites.
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mailFrom="" # From whom shall this mail be sent?
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mailTo="" # To whom shall the mail be sent? Seperate recipients with a ","
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smtpHost="" # The SMTP mail server that is going to process the mail.
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smtpAuth=yes # Does the SMTP mail server require authentication(yes/no).
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smtpUser="" # Username if smtpAuth is set to yes.
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smtpPass="" # password if smtpAuth is set to yes.
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smtpPort=587 # Standard for non authenticated SMTP is 25, 587 is for authenticated SMTP.
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# Logging
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logStatus=yes # Should we log to local logfile(yes/no).
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logPath="/var/log" # Where should we put the log file(omit the traling slash).
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logName="oSiteChecker.log" # name of log file.
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#### Do not edit anything below unless you know what you are doing. ####
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check_sites() {
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# Declare $is variable
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is=0
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# Start control
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for i in "${checkSite[@]}"
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do
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CURL=$(curl -s --head $i)
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if echo $CURL | grep "200 OK" > /dev/null
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then
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# add entry to log file if logging enabled
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if [ $logStatus == "yes" ]
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then
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echo `date +%F` `date +%T` "$i" "Host up" >> $logPath/$logName
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else
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# if logging set to no send to null
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echo "" > /dev/null
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fi
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else
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# Collect all sites that do not respond as they should for further processing.
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siteArray[ $is ]="${i}"
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(( is++ ))
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fi
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done
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# Check to see if any sites been reported as down.
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if [ ${#siteArray[@]} -ne 0 ]
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then
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# Test each failed site in a given amount of times.
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for ((n=1;n<=$rInterval;n++))
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do
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# Go through failed sites again to eliminate temporary glicthes.
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for i in "${siteArray[@]}"
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do
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CURL=$(curl -s --head $i)
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if echo $CURL | grep "200 OK" > /dev/null
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then
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# remove succesful sites from array.
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delete=(${i})
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siteArray=( "${siteArray[@]/$delete}" )
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else
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# Keeps failed site in array.
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echo "" > /dev/null
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fi
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done
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# Clean empty lines in siteArray
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tmpArray=()
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for value in "${siteArray[@]}"
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do
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[[ $value != "" ]] && tmpArray+=($value)
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done
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siteArray=("${tmpArray[@]}")
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unset tmpArray
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# Debug
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#for i in "${siteArray[@]}"
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#do
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# echo ${i}
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#done
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# Sleeps for an amount of time between checking site status again.
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sleep $rTime
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done
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fi
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# notification action
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if [ ${#siteArray[@]} -ne 0 ]
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then
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#echo ${#siteArray[@]}
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# Send an email with status
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if [ $sendMail == "yes" ]
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then
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# Temp path for mailbody.txt
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tmpPath=/tmp
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# Set mail subject
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mailSubject="Connectivity test failed"
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# Build mail body
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echo "Hi" > $tmpPath/mailbody.txt
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echo "" >> $tmpPath/mailbody.txt
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echo "One or more servers is not responding as the should, see complete list below." >> $tmpPath/mailbody.txt
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echo "" >> $tmpPath/mailbody.txt
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for i in "${siteArray[@]}"
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do
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echo ${i} >> $tmpPath/mailbody.txt
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done
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#echo "Test - Array size:" ${#siteArray[@]} >> $tmpPath/mailbody.txt
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echo "" >> $tmpPath/mailbody.txt
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echo "Sent:" `date +%Y-%m-%d` `date +%H:%M` >> $tmpPath/mailbody.txt
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echo "" >> $tmpPath/mailbody.txt
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echo "Regards" >> $tmpPath/mailbody.txt
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echo "" >> $tmpPath/mailbody.txt
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echo "Your $(cat /etc/hostname) server." >> $tmpPath/mailbody.txt
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# Send data
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MAILRC=/dev/null mailx -n
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if [ $smtpAuth = "no" ]
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then
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env MAILRC=/dev/null from=$mailFrom smtp=$smtpHost:$smtpPort mailx -v -n -s "$mailSubject" $mailTo <$tmpPath/mailbody.txt
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fi
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if [ $smtpAuth = "yes" ]
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then
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env MAILRC=/dev/null from=$mailFrom smtp=$smtpHost:$smtpPort smtp-auth-user=$smtpUser smtp-auth-password=$smtpPass smtp-use-starttls=yes ssl-verify=ignore smtp-auth=login mailx -n -s "$mailSubject" $mailTo <$tmpPath/mailbody.txt
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fi
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# Remove temporary mailbody.txt file
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rm $tmpPath/mailbody.txt
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else
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echo "" > /dev/null
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fi
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# add entry to log file if logging enabled
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if [ $logStatus == "yes" ]
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then
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for i in "${siteArray[@]}"
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do
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echo `date +%F` `date +%T` ${i} "Host down" >> $logPath/$logName
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done
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fi
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fi
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}
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mail_test() {
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# Temp path for mailbody.txt
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tmpPath=/tmp
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# Set mail subject
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mailSubject="Mail test"
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# Build mail body
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echo "Hi" > $tmpPath/mailbody.txt
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echo "" >> $tmpPath/mailbody.txt
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echo "This is a test mail to see that the mail function works." >> $tmpPath/mailbody.txt
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echo "" >> $tmpPath/mailbody.txt
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echo "Sent:" `date +%Y-%m-%d` `date +%H:%M` >> $tmpPath/mailbody.txt
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echo "" >> $tmpPath/mailbody.txt
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echo "Regards" >> $tmpPath/mailbody.txt
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echo "" >> $tmpPath/mailbody.txt
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echo "Your $(cat /etc/hostname) server." >> $tmpPath/mailbody.txt
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# Send data
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MAILRC=/dev/null mailx -n
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if [ $smtpAuth = "no" ]
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then
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env MAILRC=/dev/null from=$mailFrom smtp=$smtpHost:$smtpPort mailx -v -n -s "$mailSubject" $mailTo <$tmpPath/mailbody.txt
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fi
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if [ $smtpAuth = "yes" ]
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then
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env MAILRC=/dev/null from=$mailFrom smtp=$smtpHost:$smtpPort smtp-auth-user=$smtpUser smtp-auth-password=$smtpPass smtp-use-starttls=yes ssl-verify=ignore smtp-auth=login mailx -n -s "$mailSubject" $mailTo <$tmpPath/mailbody.txt
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fi
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# Remove temporary mailbody.txt file
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rm $tmpPath/mailbody.txt
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}
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case $1 in
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--check)
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check_sites
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;;
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--mail-test)
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mail_test
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;;
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*)
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script_help
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;;
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esac
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