#!/bin/bash # # vmail-stack # https://git.stack-source.com/msb/vmail-stack # MIT License Copyright (c) 2021 Matthew Saunders Brown # load config source /usr/local/etc/vmail.conf help() { thisfilename=$(basename -- "$0") echo "$thisfilename" echo "Add email alias to vmail system" echo "" echo "usage: $thisfilename email alias [OPTIONS]" echo "" echo " -h Print this help." echo "" echo " 'email' should be the full address 'alias' just the local part (username)." echo " .e.g to have info@example.com delivered (aliased) to joe@example.com do:" echo " $thisfilename joe@example.com info" exit } # check for and set alias & email address & split in to local part & domain if [ -n "$2" ]; then if [ $1 == "-h" ] || [ $2 == "-h" ]; then help else email=$1 shift alias=$1 shift if [[ $email =~ "@" ]] ; then mbox=${email%@*} domain=${email##*@} if [ -z $mbox ] ; then echo "ERROR: No local part in $email." exit 1 elif [ -z $domain ] ; then echo "ERROR: No domain in $email." exit 1 elif [[ ! $domain =~ ^(([a-zA-Z](-?[a-zA-Z0-9])*)\.)+[a-zA-Z]{2,}$ ]] ; then echo "ERROR: $domain is not a valid domain name." exit 1 fi else echo "ERROR: $email is not a valid email." exit 1 fi fi else help fi # set any options that were passed while getopts "h" opt; do case "${opt}" in h ) help exit;; \? ) echo "Invalid option: $OPTARG" 1>&2 exit;; : ) echo "Invalid option: $OPTARG requires an argument" 1>&2 exit;; esac done # get domain_id (and thus check if domain already exists) domain_id=`mysql --defaults-extra-file=$MYSQL_CONNECTION_INFO_FILE -s -r -N -e "SELECT id from vm_domains WHERE domain='$domain';"` if [ -z $domain_id ] ; then echo "ERROR: Domain $domain does not exist." exit 1 fi # get mbox id, which also verfies that email address exists mbox_id=`mysql --defaults-extra-file=$MYSQL_CONNECTION_INFO_FILE -s -r -N -e "SELECT id FROM vm_mboxes WHERE domain_id='$domain_id' AND mbox='$mbox';"` if [ -z $mbox_id ] ; then # mbox does not exist, can't create alias echo "ERROR: Address to Alias To ($email) does not exist." exit 1 elif [ "$mbox_id" -gt '1' ] ; then # verified mbox, check for existing alias existing_alias=`mysql --defaults-extra-file=$MYSQL_CONNECTION_INFO_FILE -s -r -N -e "SELECT vm_mboxes.mbox FROM vm_mboxes, vm_aliases WHERE vm_aliases.alias='$alias' AND vm_aliases.mbox_id=vm_mboxes.id AND vm_mboxes.domain_id='$domain_id';"` if [ -z $existing_alias ]; then # existing alias does not exist, add new one now dbcmd="mysql --defaults-extra-file=$MYSQL_CONNECTION_INFO_FILE -e 'INSERT INTO vm_aliases SET vm_aliases.alias=\"$alias\", vm_aliases.mbox_id=\"$mbox_id\";'" eval $dbcmd else if [ "$existing_alias" == "$mbox" ]; then echo "ERROR: Alias for $alias To $email already exists." exit 1 else echo "ERROR: Alias for $alias already points to another address ($existing_alias@$domain). To update delete that alias first, then add a new one." exit 1 fi fi else # db query error echo "ERROR: System error querying vmail database." exit 1 fi