docker-mailserver/target/scripts/helpers/aliases.sh
2022-03-02 22:54:14 +00:00

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#! /bin/bash
# Support for Postfix aliases
# NOTE: LDAP doesn't appear to use this, but the docs page: "Use Cases | Forward-Only Mail-Server with LDAP"
# does have an example where /etc/postfix/virtual is referenced in addition to ldap config for Postfix `main.cf:virtual_alias_maps`.
# `setup-stack.sh:_setup_ldap` does not seem to configure for `/etc/postfix/virtual however.`
# NOTE: `accounts.sh` and `relay.sh:_populate_relayhost_map` also process on `postfix-virtual.cf`.
function _handle_postfix_virtual_config
{
: >/etc/postfix/virtual
: >/etc/postfix/regexp
if [[ -f /tmp/docker-mailserver/postfix-virtual.cf ]]
then
# fixing old virtual user file
if grep -q ",$" /tmp/docker-mailserver/postfix-virtual.cf
then
sed -i -e "s|, |,|g" -e "s|,$||g" /tmp/docker-mailserver/postfix-virtual.cf
fi
cp -f /tmp/docker-mailserver/postfix-virtual.cf /etc/postfix/virtual
# the `to` is important, don't delete it
# shellcheck disable=SC2034
while read -r FROM TO
do
UNAME=$(echo "${FROM}" | cut -d @ -f1)
DOMAIN=$(echo "${FROM}" | cut -d @ -f2)
# if they are equal it means the line looks like: "user1 other@domain.tld"
[[ ${UNAME} != "${DOMAIN}" ]] && echo "${DOMAIN}" >>/tmp/vhost.tmp
done < <(grep -v "^\s*$\|^\s*\#" /tmp/docker-mailserver/postfix-virtual.cf || true)
else
_notify 'inf' "Warning '/tmp/docker-mailserver/postfix-virtual.cf' is not provided. No mail alias/forward created."
fi
}
function _handle_postfix_regexp_config
{
if [[ -f /tmp/docker-mailserver/postfix-regexp.cf ]]
then
_notify 'inf' "Adding regexp alias file postfix-regexp.cf"
cp -f /tmp/docker-mailserver/postfix-regexp.cf /etc/postfix/regexp
if ! grep 'virtual_alias_maps.*pcre:/etc/postfix/regexp' /etc/postfix/main.cf
then
sed -i -E \
's|virtual_alias_maps(.*)|virtual_alias_maps\1 pcre:/etc/postfix/regexp|g' \
/etc/postfix/main.cf
fi
fi
}
function _handle_postfix_aliases_config
{
_notify 'inf' 'Configuring root alias'
echo "root: ${POSTMASTER_ADDRESS}" >/etc/aliases
if [[ -f /tmp/docker-mailserver/postfix-aliases.cf ]]
then
cat /tmp/docker-mailserver/postfix-aliases.cf >>/etc/aliases
else
_notify 'inf' "'/tmp/docker-mailserver/postfix-aliases.cf' is not provided, it will be auto created."
: >/tmp/docker-mailserver/postfix-aliases.cf
fi
postalias /etc/aliases
}
# Other scripts should call this method, rather than the ones above:
function _create_aliases
{
_handle_postfix_virtual_config
_handle_postfix_regexp_config
_handle_postfix_aliases_config
}