Session Invalidate

invalidate.sh

if [ $# -lt 2 ];
then
echo "Usage: {username} {password}"
echo "If your account is migrated, use your email as your username"
exit 1;
fi;

USERNAME=$1
PASSWORD=$2
REQUEST_DATA="{\"username\": \"$USERNAME\", \"password\": \"$PASSWORD\"}"

RESPONSE=$(curl -H "Content-Type: application/json" -X POST -d "$REQUEST_DATA" "https://authserver.mojang.com/signout" > /dev/null)

if [ "$RESPONSE" != "" ]; # Check if the line is only whitespace
then
WHITESPACE=false
else
WHITESPACE=true;
fi;

echo $RESPONSE | grep "migrated"
MIGRATED=$?
if [ $WHITESPACE ];
then
MIGRATED=false
fi;

echo $RESPONSE | grep "ForbiddenOperationException"
INVALID_ACCOUNT=$?
if [ $WHITESPACE ];
then
INVALID_ACCOUNT=false
fi;

if [ $MIGRATED == 0 ];
then
echo "Account Migrated"
echo "Please use your email"
exit 2;
elif [ $INVALID_ACCOUNT == 0 ];
then
echo "Invalid username or password";
exit 3;
fi;

if [ ! $WHITESPACE ];
then
echo "Unknown error: $RESPONSE"
exit 4;
else
echo "Success"
exit 0;
fi;