docker-mailserver/target/bin/addalias
2020-07-19 21:21:01 +02:00

32 lines
696 B
Bash
Executable file

#! /bin/bash
DATABASE=${DATABASE:-/tmp/docker-mailserver/postfix-virtual.cf}
EMAIL="$1"
RECIPIENT="$2"
usage() {
echo "Usage: addalias <alias@domain> <recipient@other>"
}
errex() {
echo "$@" 1>&2
exit 1
}
escape() {
echo "${1//./\\.}"
}
[ -z "$EMAIL" ] && { usage; errex "Error: No alias specified"; }
[ -z "$RECIPIENT" ] && { usage; errex "Error: No recipient specified"; }
grep -qi "^$(escape $EMAIL)[a-zA-Z@.\ ]*$(escape $RECIPIENT)" $DATABASE 2>/dev/null &&
errex "Alias \"$EMAIL $RECIPIENT\" already exists"
if grep -qi "^$(escape $EMAIL)" $DATABASE 2>/dev/null; then
sed -i "/$EMAIL/s/$/,$RECIPIENT/" $DATABASE
else
echo "$EMAIL $RECIPIENT" >> $DATABASE
fi