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/trunk/changelog.txt
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2017-08-30 Marcus Uddenhed <marcus@osource.se>
 
* readme.txt (file): Created.
 
* oSiteChecker.sh (file): Created.
* license.txt (file): Created.
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/trunk/license.txt
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Copyright 2017 oSource Development
 
Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
 
1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
 
2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer
in the documentation and/or other materials provided with the distribution.
 
3. Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote products derived
from this software without specific prior written permission.
 
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
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/trunk/oSiteChecker.sh
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#!/bin/bash
 
#
# Script that checks if given sites are up and sends an e-mail if they 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: 0.5.0
# Web: http://www.osource.se
# Updated: 2017-08-31
#
# Requires: mailx (http://heirloom.sourceforge.net/mailx.html)
#
# Licensed under BSDL license, see license information on our homepage.
#
 
#### Global variables ####
# Sites
checkSite[1]="https://"; # Add sites that you want to monitor, can be as many as you want.
checkSite[2]="http://";
 
# 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? Seperate recipients with a ","
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.
 
# 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 mailx -n
if [ $smtpAuth = "no" ]
then
env MAILRC=/dev/null from=$mailFrom smtp=$smtpHost:$smtpPort mailx -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 mailx -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 mailx -n
if [ $smtpAuth = "no" ]
then
env MAILRC=/dev/null from=$mailFrom smtp=$smtpHost:$smtpPort mailx -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 mailx -n -s "$mailSubject" $mailTo <$tmpPath/mailbody.txt
fi
 
# Remove temporary mailbody.txt file
rm $tmpPath/mailbody.txt
}
 
case $1 in
--check)
check_sites
;;
--mail-test)
mail_test
;;
*)
script_help
;;
esac
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/trunk/readme.txt
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Release notes for oSiteChecker v0.5.0 2017-08-30
================================================
 
Overview:
Script to monitor site status from remote location. The script checks given sites in given intervals and can send mail when one or more sites are down,
the script can log the information into a log file to for statistical analysis later on if desired.
 
Purpose:
Monitor given sites and alert when down.
 
Issue Summary:
* None at this time
 
Notes:
This script has been tested on Rasbian on a Raspberry PI, but should work on other Linux/Unix as long as Mailx dependency is met.
 
More info about mailx (http://heirloom.sourceforge.net/mailx.html)
 
Disclaimer:
This software is released with the BSDL license and the license is in the license.txt
file that should accompany this software.
 
Contact:
https://dev.osource.se/
https://www.osource.se/index.php/development/ositechecker/
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