initial commit

#!/bin/sh

# Usage: ./sustc-cas-login.sh [username] [password]

URL=`curl --head baidu.com 2> /dev/null | grep "Location: http://enet.10000.gd.cn" | sed 's/Location: //'`

if echo $URL | grep -q "http"

then

DATE=`date "+%Y-%m-%d %H:%M:%S"`

URL=`echo "$URL" | sed 's/\r$//g'`

echo "[$DATE] Logging..."

FORM=`curl -L "${URL}" 2> /dev/null`

ACTION=`echo "$FORM" | grep "<form " | sed 's/.*action="\(.*\)" .*/\1/'`

LT=`echo "$FORM" | grep '<input type="hidden" name="lt" ' | sed 's/.*value="\(.*\)" .*/\1/'`

EXEC=`echo "$FORM" | grep '<input type="hidden" name="execution" ' | sed 's/.*value="\(.*\)" .*/\1/'`

DATA="username=$1&password=$2&lt=$LT&execution=$EXEC&_eventId=submit&submit=LOGIN"

RESULT=`curl -L --data "$DATA" "http://weblogin.sustc.edu.cn$ACTION" 2> /dev/null`

if echo $RESULT | grep -q "<h2>success"

then

echo "Success"

else

echo "Failed"

fi

fi

exit 0