# IBM(c) 2007 EPL license http://www.eclipse.org/legal/epl-v10.html
# set up credentials for user to be able to run xCAT commands
# Must be run by root
#   Interface
#     setup-local-client.sh  - setup root credentials
#     setup-local-client.sh user1  - set up user1 credentials and store in 
#                      $HOME/.xcat
#     setup-local-client.sh user2  /tmp/user2  - setup user2 credentials and
#                      store in /tmp/user2/.xcat.  Must later be copied to 
#                      $HOME/xcat for user2.  Used when root cannot write to
#                      the home directory of user2 (e.g when mounted).
umask 0077 #nothing make by this script should be readable by group or others


if [ -z "$XCATDIR" ]; then
  XCATDIR=/etc/xcat
fi
if [ -z "$1" ]; then
  set `whoami`
fi
# if directory is not supplied then just use home
if [ -z "$2" ]; then
   CNA="$*"
#  getent doesn't exist on AIX
  if [ -x /usr/bin/getent ];then
   USERHOME=`getent passwd $1|awk -F: '{print $6}'`
  else
    USERHOME=`lsuser -a home root | cut -d'=' -f2` 
  fi
else
  CNA="$1"
  USERHOME=$2 
fi
XCATCADIR=$XCATDIR/ca

if [ -e $USERHOME/.xcat ]; then
# exit 0
  echo -n "$USERHOME/.xcat already exists, delete and start over (y/n)?"
  read ANSWER
  if [ "$ANSWER" != "y" ]; then
    echo "Aborting at user request"
    exit 0
  fi
  rm -rf $USERHOME/.xcat
fi
# remove user from index
echo $CNA
index=`grep $CNA /etc/xcat/ca/index  |  cut -f4  2>&1`
echo $index
for id  in $index; do
  openssl ca -config /etc/xcat/ca/openssl.cnf -revoke /etc/xcat/ca/certs/$id.pem
done
mkdir -p $USERHOME/.xcat
cd $USERHOME/.xcat
openssl genrsa -out client-key.pem 2048
openssl req -config $XCATCADIR/openssl.cnf -new -key client-key.pem -out client-req.pem -subj "/CN=$CNA"
cp client-req.pem  $XCATDIR/ca/root.csr
cd -
cd $XCATDIR/ca

#   - "make sign" doesn't work on my AIX test system????
#   - seems to be a problem with the use of the wildcard in the Makefile
#   - calling cmds directly instead - should be safe
# make sign
openssl ca -config openssl.cnf -in root.csr -out root.cert
if [ -f root.cert ]; then
    rm root.csr
fi

cp root.cert $USERHOME/.xcat/client-cert.pem
#Unify certificate and key in one file, console command at least expects it
cat $USERHOME/.xcat/client-cert.pem $USERHOME/.xcat/client-key.pem > $USERHOME/.xcat/client-cred.pem
cp ca-cert.pem $USERHOME/.xcat/ca.pem
chown -R $1 $USERHOME/.xcat
find $USERHOME/.xcat -type f -exec chmod 600 {} \;
find $USERHOME/.xcat -type d -exec chmod 700 {} \;
chmod 644 $USERHOME/.xcat/ca.pem
chmod 755 $USERHOME/.xcat
cd -