#!/bin/bash

###
# Bash script based on basic linux command line tools to log in to OLAT start a course
# from the home and logout again. On failure it sends an sms to a mobile phone specified.
# Designed for usage in the network of university of Zurich. Addapt for you needs.
#
# That the script can start a course you have to create a user on the machine and put
# on the olat desktop only one bookmark with the course you like to start and remove all
# other portlets. If you do NOT have shibboleth as default auth provider you have to modifie
# also the second step which grabs the normal login form
# 
# initial date: 4. Sept. 2007
# author: Guido Schnider
###

domain="olat.unizh.ch"
port=":80"
username="performance-test-user"
password="*****"
cutTime="10"

#domain="localhost"
#port=":8080"
#username="administrator"
#password="olat"
#cutTime="10"

HANDY=*******




start=`date +%s`
#grab loginpage and extract form action uri
wget -o temp-log0 -O temp-startpage.html --save-cookies cookies.txt --keep-session-cookies http://$domain$port/olat/dmz/
sleep 1

# THIS step is optional - ONLY needed to get the normal (username/pw) loginform to front when shibboleth login is active
#open normal login form page not shibboleth
loginuri=`grep '?lp=OLAT' temp-startpage.html | sed 's/^.*href="//' | sed 's/".*$//'`
#echo $loginuri
wget -o temp-log1 -O temp-logform.html --save-cookies cookies.txt --keep-session-cookies --load-cookies cookies.txt http://$domain$port$loginuri
sleep 1

#must be 1 otherwise the server is not available
checkResponse=`grep 'name=\"loginForm\"' temp-logform.html | wc -l`
if [ $checkResponse == 1 ]
then
	uri=`grep 'name=\"loginForm\"' temp-logform.html | sed 's/^.*action="//' | sed 's/".*$//'`
	#echo $uri
	
	#login with extracted uri and post method
	wget -o temp-log2 -O temp-home.html --save-cookies cookies.txt --keep-session-cookies --load-cookies cookies.txt --post-data="lf_login=$username&lf_pass=$password&olat_fosm_0=Login" http://$domain$port$uri
	#sleep to let the instant messenger connect
	sleep 3
	
	#start demo course from the homepage with direkt link, this only works if there a no other "cmd.launch" stuff is on the screen
	# best is to remove all other portlets except the bookmarks portlet
	courseuri=`grep 'cmd.launch\/' temp-home.html | sed 's/^.*href="//' | sed 's/".*$//'`
	#echo $courseuri
	#start course
	wget -o temp-log3 -O temp-course.html --save-cookies cookies.txt --keep-session-cookies --load-cookies cookies.txt http://$domain$port$courseuri
	#sleep to let the instant messenger create a chatroom
	sleep 3
	#extract logout uri for later usage
	logouturi=`grep 'logout\/' temp-course.html | sed 's/^.*href="//' | sed 's/".*$//'`
	#echo $logouturi
	
	#logout
	wget -o temp-log4 -O temp-logout.html --save-cookies cookies.txt --keep-session-cookies --load-cookies cookies.txt http://$domain$port$logouturi
	sleep 1
	#send sms if time is too long
	rm temp-*
	rm cookies.txt
	stop=`date +%s`
	#substract the sleep times
	echo `date`" time: "$(($stop-$start-9))
	PROCESSTIME=$(($stop-$start-9))
	if [ $PROCESSTIME -gt $cutTime ]
	then
		# only send sms after 3 o'clock in the morning (after restart phase)
		if [ `date +%H` -gt 3 ]
		then
			echo `date`"OLAT is slow! Login->start course->logout took ($PROCESSTIME)s" | /usr/bin/mail -s "OLAT performance alert!" -r "id_olat@olat.unizh.ch" $HANDY@sms.switch.ch
		fi
	fi
else
	if [ `date +%H` -gt 3 ]
	then
	echo `date`" error - olat server not available by auto loginscript!" | /usr/bin/mail -s "OLAT performance alert!" -r "id_olat@olat.unizh.ch" $HANDY@sms.switch.ch
	fi
fi