docker-mailserver/target/scripts/startup/setup.d/saslauthd.sh
Brennan Kinney ed84dca147
chore: LDAP config improvements (#3522)
* chore: Drop management of `SASLAUTHD_*` ENV

- `variables-stack.sh` does not need to manage all these extra ENV or store them. They're not used anywhere else.
- `saslauthd.sh` is the only consumer of these ENV which are effectively direct key/value mappings, with some defaults provided / inherited.

Instead of trying to conditionally support key/value pairs when ENV is set, we could instead use `sed` to delete lines with empty values.

* chore: Drop fallbacks + update configs to match docs

- Drop deprecated support:
  - `DOVECOT_HOSTS` is an ENV deprecated since v10.
  - Fallback for missing URI scheme introduced for Dovecot and SASLAuthd in v10.
  - Adding error log message when no LDAP URI scheme is detected for the supported ENV (when set).
- Docs updated for ENV to reflect the mandatory requirement. `mailserver.env` partially synced equivalent sections.
- Provided base LDAP configs (for overriding) likewise updated from `domain.com` to `example.com`.
- LDAP test updated for required `ldap://` URI scheme. Common ENV shared across LDAP configs hoisted out of the Postfix group.

* chore: Remove unset lines in generated `saslauthd.conf`
2023-09-02 22:07:02 +12:00

45 lines
1.5 KiB
Bash

#!/bin/bash
function _setup_saslauthd() {
_log 'debug' 'Setting up SASLAUTHD'
# NOTE: It's unlikely this file would already exist,
# Unlike Dovecot/Postfix LDAP support, this file has no ENV replacement
# nor does it copy from the DMS config volume to this internal location.
if [[ ${ACCOUNT_PROVISIONER} == 'LDAP' ]] \
&& [[ ! -f /etc/saslauthd.conf ]]; then
_log 'trace' 'Creating /etc/saslauthd.conf'
# Create a config based on ENV
sed '/^.*: $/d'> /etc/saslauthd.conf << EOF
ldap_servers: ${SASLAUTHD_LDAP_SERVER:=${LDAP_SERVER_HOST}}
ldap_auth_method: ${SASLAUTHD_LDAP_AUTH_METHOD:=bind}
ldap_bind_dn: ${SASLAUTHD_LDAP_BIND_DN:=${LDAP_BIND_DN}}
ldap_bind_pw: ${SASLAUTHD_LDAP_PASSWORD:=${LDAP_BIND_PW}}
ldap_search_base: ${SASLAUTHD_LDAP_SEARCH_BASE:=${LDAP_SEARCH_BASE}}
ldap_filter: ${SASLAUTHD_LDAP_FILTER:=(&(uniqueIdentifier=%u)(mailEnabled=TRUE))}
ldap_start_tls: ${SASLAUTHD_LDAP_START_TLS:=no}
ldap_tls_check_peer: ${SASLAUTHD_LDAP_TLS_CHECK_PEER:=no}
ldap_tls_cacert_file: ${SASLAUTHD_LDAP_TLS_CACERT_FILE}
ldap_tls_cacert_dir: ${SASLAUTHD_LDAP_TLS_CACERT_DIR}
ldap_password_attr: ${SASLAUTHD_LDAP_PASSWORD_ATTR}
ldap_mech: ${SASLAUTHD_LDAP_MECH}
ldap_referrals: yes
log_level: 10
EOF
fi
sed -i \
-e "/^[^#].*smtpd_sasl_type.*/s/^/#/g" \
-e "/^[^#].*smtpd_sasl_path.*/s/^/#/g" \
/etc/postfix/master.cf
sed -i \
-e "/smtpd_sasl_path =.*/d" \
-e "/smtpd_sasl_type =.*/d" \
-e "/dovecot_destination_recipient_limit =.*/d" \
/etc/postfix/main.cf
gpasswd -a postfix sasl >/dev/null
}