pywallter/scripts/set_mail_alias

#!/bin/sh

. /etc/mailconfig

exit_failure(){
    mess=$1
    code_exit=$2
    echo "$mess";
    exit "$code_exit";
}

check_domain()
{
    mail=$1
    alias=$2

    domain_mail=`echo $mail | awk -F '@' '{ print $2 }'`
    domain_alias=`echo $alias | awk -F '@' '{ print $2 }'`

    [[ "$domain_mail" = `hostname`  && "$domain_alias" = `hostname`  ]] || exit_failure "Bad domain" 1;

    grep -q "$mail" "$PASSWD_FILE" && true ||  exit_failure "Mail doesn't exist" 1;

}

check_mail_exist()
{
    mail=$1
    grep -q "$mail" "$PASSWD_FILE"  &&  exit_failure " This e-mail  address already exist" 2 || true
}

check_alias()
{
    alias=$1
    grep -q "$alias" "$ALIAS_FILE"  &&  exit_failure "This e- mail address already exist in alias" 2 || true
}

check_app_mail()
{
    alias=$1
    grep -q "$alias" "$APP_MAIL"  &&  exit_failure "Address already exist in app mail" 2 || true
}

add_alias()
{
    print "$2":" $1" >> "$ALIAS_FILE"
}

check_alias_exist(){
    alias_c="$1: $2"
    grep -q "$alias_c" "$ALIAS_FILE" && true || exit_failure "This alias doesn't exist" 3
}

del_alias()
{
    alias_line="$1: $2"
    egrep -v "$alias_line" "$ALIAS_FILE" > /tmp/alias.tmp
    mv /tmp/alias.tmp "$ALIAS_FILE"
}


usage(){
    print "This program ask 3 arguments : \n"
    print "First is email with domain name of this host second is add or del for \n"
    print "add or delete an alias "
    print "\t$0 email-adresse del alias@`hostname`\n"
    print "Other example:\n\t $0 test@`hostname` add myalias@`hostname` "
    print "This script require root privilèges"
}

if [ `id -u` -ne 0 ]; then
    usage
    exit 4;
fi

if [ -z $1 ];
then
    usage
    exit 3;
fi

if [ -z $2 ];
then
    usage
    exit 3;
fi

if [ -z $3 ];
then
    usage
    exit 3;
fi


check_domain $1 $3


case $2 in
    "add")
        check_mail_exist $3
        check_alias $3
        check_app_mail $3
        add_alias $1 $3
        smtpctl update table virtuals
        ;;
    "del")
        check_alias_exist $3 $1
        del_alias $3 $1
        smtpctl update table virtuals
        ;;
    *)
        usage
        exit 4;
        ;;
esac