add wget version

#!/bin/sh

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

DOWN="wget -qO-"

if [ -n "$3" ]; then

DOWN="$DOWN --bind-address $3"

fi

FORM=`$DOWN baidu.com 2> /dev/null`

if echo $FORM | grep -q "/cas/login"

then

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

echo "[$DATE] Logging..."

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=`$DOWN --post-data="$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