#!/bin/bash
#
#
# mptldap - migrates policy mailquota to ldap
# 2009 Tim Petersen
####################################################################
# Usage function, helpfile                                         #
####################################################################
usage()
{
    echo ""
    echo "migrate [OPTION] USER"
    echo "-u specifies User, if not specified, all user policy quota will be migrated"
    echo "-l only lists possible quota set in policy"
    echo "-h shows this helpfile"
    echo ""
    echo "closing with exit 0"
    echo ""
}
migrate="true"
specuser="nouseratall"
####################################################################
# Parse options                                                    #
####################################################################
while getopts ":hu:l" opt
do
    case $opt in
        \?)
            echo "Enter mptldap -h for helpfile"
            exit 1
            ;;
        u)
            specuser="$OPTARG"
            echo "Specified user to be migrated: "$specuser""
            ;;
        h)
            usage
            exit 0
            ;;
	l)
	    migrate="false" 
	    ;;
        :)
            echo "Enter mptldap -h for helpfile"
            exit 1
    esac
done
# Shifting back OPTIND to receive Argument above getopts
shift $(($OPTIND - 1))
####################################################################
# migrates user quotas                                         #
####################################################################
migrate()
{
    eval $(ucr shell)
    if [ "$specuser" != "nouseratall" ]
    then
	allusers=$specuser
    else
	allusers=$(ldapsearch -LLLxu objectClass=univentionMail uid= | grep uid | sed s/"dn: "// | sed s/","/"\n"/ | grep uid | sed s/"uid="//)
    fi
    if [ "$specuser" != "nouseratall" ]
    then
	policyusers=$(univention_policy_result uid=$specuser,cn=users,$ldap_base | grep -B 1 univentionMailQuotaMB | head -1 | sed s/"Policy: cn="// | cut -d "," -f1)
    else
	policyusers=$(ldapsearch -LLLxu objectClass=univentionMail | grep univentionPolicyReference | grep cn | sed s/"univentionPolicyReference: "// | cut -d "," -f1 | sed s/"cn="//)      
    fi
    for i in $allusers
    do 
	userpolicy=$(univention_policy_result uid=$i,cn=users,$ldap_base | grep -A 1 univentionMailQuotaMB | tail -1 | sed s/"Value: "//)
	if [ $(echo $userpolicy | grep -E "^[0-9]+$") ] 
	then 
	    univention-directory-manager users/user modify --dn="uid=$i,cn=users,$ldap_base" --set mailMailQuota=$userpolicy
	fi
    done
        for i in $policyusers
    do
    	univention-directory-manager policies/mailquota modify --dn="cn=$i,cn=mail,cn=policies,$ldap_base" --set MailQuota=
    done
}
####################################################################
# only lists possible quota changes                                #
####################################################################
onlylist()
{
    eval $(ucr shell)
    allusers=$(ldapsearch -LLLxu objectClass=univentionMail uid= | grep uid | sed s/"dn: "// | sed s/","/"\n"/ | grep uid | sed s/"uid="//)
    for i in $allusers
    do 
	userpolicy=$(univention_policy_result uid=$i,cn=users,$ldap_base | grep -A 1 univentionMailQuotaMB | tail -1 | sed s/"Value: "//)
	if [ $(echo $userpolicy | grep -E "^[0-9]+$") ] 
	then 
	    echo "#################"
	    echo "#  QUOTA FOUND  # user $i has set the following quota as policy attribute: $userpolicy MB"
	    echo "#################"
	else
	    echo "################# user $i has no quota set as policy attribute"
	fi
	done
}
####################################################################
# starting migration                                               #
####################################################################
if [ $migrate == "false" ]
then
    onlylist
else
    migrate
fi