Subversion Repositories oSiteChecker

#!/bin/bash

#

# Script that checks if given sites are up and sends an e-mail if the are not.

# You should not run this script on the same servers your monitoring,

# neither should your e-mail account reside on a server behind same firewall as the sites your checking.

#

# Developer: oSource Development

# DevTeam: Marcus Uddenhed

# Version: 0.6.1

# Web: http://www.osource.se

# Updated: 2017-10-30

#

# Requires: heirloom-mailx (http://heirloom.sourceforge.net/mailx.html)

#

# Licensed under BSDL license, see license information on our homepage.

#

#### Global variables ####

# Sites

checkSite[1]="http://"						# Add sites that you want to monitor, can be as many as you want.

checkSite[2]="https://"

# Retries

rInterval=8									# How many times should it retry until it set the site as down.

rTime=20									# How many seconds shold it wait between retries.

# Mail

sendMail=yes								# Should i send an e-mail with failed sites.

mailFrom=""									# From whom shall this mail be sent?

mailTo=""									# To whom shall the mail be sent?

smtpHost=""									# The SMTP mail server that is going to process the mail.

smtpAuth=yes								# Does the SMTP mail server require authentication(yes/no).

smtpUser=""									# Username if smtpAuth is set to yes.

smtpPass=""									# password if smtpAuth is set to yes.

smtpPort=587								# Standard for non authenticated SMTP is 25, 587 is for authenticated SMTP.

mailBin="heirloom-mailx"					# executable file for mailx.

# Logging

logStatus=yes								# Should we log to local logfile(yes/no).

logPath="/var/log"							# Where should we put the log file(omit the traling slash).

logName="oSiteChecker.log"					# name of log file.

#### Do not edit anything below unless you know what you are doing. ####

check_sites() {

	# Declare $is variable

	is=0

	# Start control

	for i in "${checkSite[@]}"

	do

		CURL=$(curl -s --head $i)

		if echo $CURL | grep "200 OK" > /dev/null

		then

			# add entry to log file if logging enabled

			if [ $logStatus == "yes" ]

			then

				echo `date +%F` `date +%T` "$i" "Host up" >> $logPath/$logName

			else

				# if logging set to no send to null

				echo "" > /dev/null

			fi

		else

			# Collect all sites that do not respond as they should for further processing.

			siteArray[ $is ]="${i}"

			(( is++ ))

		fi

	done

    # Check to see if any sites been reported as down.

	if [ ${#siteArray[@]} -ne 0 ]

	then

		# Test each failed site in a given amount of times.

		for ((n=1;n<=$rInterval;n++))

		do

			# Go through failed sites again to eliminate temporary glicthes.

			for i in "${siteArray[@]}"

			do

				CURL=$(curl -s --head $i)

				if echo $CURL | grep "200 OK" > /dev/null

				then

					# remove succesful sites from array.

					delete=(${i})

					siteArray=( "${siteArray[@]/$delete}" )

				else

					# Keeps failed site in array.

					echo "" > /dev/null

				fi

			done

			# Clean empty lines in siteArray

			tmpArray=()

			for value in "${siteArray[@]}"

			do

				[[ $value != "" ]] && tmpArray+=($value)

			done

			siteArray=("${tmpArray[@]}")

			unset tmpArray

			# Debug

			#for i in "${siteArray[@]}"

			#do

			#	echo ${i}

			#done

			# Sleeps for an amount of time between checking site status again.

			sleep $rTime

		done

	fi

	# notification action

	if [ ${#siteArray[@]} -ne 0 ]

	then

	#echo ${#siteArray[@]}

		# Send an email with status

		if [ $sendMail == "yes" ]

		then

			# Temp path for mailbody.txt

			tmpPath=/tmp

			# Set mail subject

			mailSubject="Connectivity test failed"

			# Build mail body

			echo "Hi" > $tmpPath/mailbody.txt

			echo "" >> $tmpPath/mailbody.txt

			echo "One or more servers is not responding as the should, see complete list below." >> $tmpPath/mailbody.txt

			echo "" >> $tmpPath/mailbody.txt

			for i in "${siteArray[@]}"

			do

				echo ${i} >> $tmpPath/mailbody.txt

			done

			#echo "Test - Array size:" ${#siteArray[@]} >> $tmpPath/mailbody.txt

			echo "" >> $tmpPath/mailbody.txt

			echo "Sent:" `date +%Y-%m-%d` `date +%H:%M` >> $tmpPath/mailbody.txt

			echo "" >> $tmpPath/mailbody.txt

			echo "Regards" >> $tmpPath/mailbody.txt

			echo "" >> $tmpPath/mailbody.txt

			echo "Your $(cat /etc/hostname) server." >> $tmpPath/mailbody.txt

			# Send data

			MAILRC=/dev/null $mailBin -n

			if [ $smtpAuth = "no" ]

			then

				env MAILRC=/dev/null from=$mailFrom smtp=$smtpHost:$smtpPort $mailBin -v -n -s "$mailSubject" $mailTo  <$tmpPath/mailbody.txt

			fi

			if [ $smtpAuth = "yes" ]

			then

				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 $mailBin -n -s "$mailSubject" $mailTo <$tmpPath/mailbody.txt

			fi

			# Remove temporary mailbody.txt file

			rm $tmpPath/mailbody.txt

		else

			echo "" > /dev/null

		fi

		# add entry to log file if logging enabled

		if [ $logStatus == "yes" ]

		then

			for i in "${siteArray[@]}"

			do

				echo `date +%F` `date +%T` ${i} "Host down" >> $logPath/$logName

			done

		fi

	fi

}

mail_test() {

	# Temp path for mailbody.txt

	tmpPath=/tmp

	# Set mail subject

	mailSubject="Mail test"

	# Build mail body

	echo "Hi" > $tmpPath/mailbody.txt

	echo "" >> $tmpPath/mailbody.txt

	echo "This is a test mail to see that the mail function works." >> $tmpPath/mailbody.txt

	echo "" >> $tmpPath/mailbody.txt

	echo "Sent:" `date +%Y-%m-%d` `date +%H:%M` >> $tmpPath/mailbody.txt

	echo "" >> $tmpPath/mailbody.txt

	echo "Regards" >> $tmpPath/mailbody.txt

	echo "" >> $tmpPath/mailbody.txt

	echo "Your $(cat /etc/hostname) server." >> $tmpPath/mailbody.txt

	# Send data

	MAILRC=/dev/null $mailBin -n

	if [ $smtpAuth = "no" ]

	then

		env MAILRC=/dev/null from=$mailFrom smtp=$smtpHost:$smtpPort $mailBin -v -n -s "$mailSubject" $mailTo  <$tmpPath/mailbody.txt

	fi

	if [ $smtpAuth = "yes" ]

	then

		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 $mailBin -n -s "$mailSubject" $mailTo <$tmpPath/mailbody.txt

	fi

	# Remove temporary mailbody.txt file

	rm $tmpPath/mailbody.txt

}

script_help() {

	echo "Usage: oSiteChecker.sh <parameter>"

	echo ""

	echo "Parameters:"

	echo "--check      Does a test connection to pre-configured sites and test to see if they are responding."

	echo "--mail-test  Does a test on the mail function to see if all mail related settings are okay."

}

case $1 in

	--check)

		check_sites

	;;

    --mail-test)

		mail_test

    ;;

	*)

		script_help

	;;

esac