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https://github.com/docker-mailserver/docker-mailserver.git
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50 lines
2.1 KiB
Bash
50 lines
2.1 KiB
Bash
#!/bin/bash
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# Manage DB writes for: DATABASE_VIRTUAL
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# A virtual alias may be any of `user@domain`, `user`, `@domain`.
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# Recipients are local (internal services), hosted (managed accounts), remote (third-party MTA), or aliases themselves,
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# An alias may redirect mail to one or more recipients. If a recipient is an alias Postfix will recursively resolve it.
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#
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# WARNING: Support for multiple and recursive recipients may not be well supported by this projects scripts/features.
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# One of those features is Dovecot Quota support, which uses a naive workaround for supporting quota checks for inbound
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# mail to an alias address.
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# Logic to perform for requested operations handled here:
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function _manage_virtual_aliases() {
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local ACTION=${1}
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local MAIL_ALIAS=${2}
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local RECIPIENT=${3}
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# Validation error handling expects that the caller has defined a '__usage' method:
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[[ -z ${MAIL_ALIAS} ]] && { __usage ; _exit_with_error 'No alias specified' ; }
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[[ -z ${RECIPIENT} ]] && { __usage ; _exit_with_error 'No recipient specified' ; }
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local DATABASE_VIRTUAL='/tmp/docker-mailserver/postfix-virtual.cf'
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case "${ACTION}" in
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# Associate RECIPIENT to MAIL_ALIAS:
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( 'update' )
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if [[ -f ${DATABASE_ACCOUNTS} ]] && grep -q "^${MAIL_ALIAS}" "${DATABASE_ACCOUNTS}"; then
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_exit_with_error "'${MAIL_ALIAS}' is already defined as an account"
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fi
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_db_entry_add_or_append "${DATABASE_VIRTUAL}" "${MAIL_ALIAS}" "${RECIPIENT}"
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;;
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# Removes RECIPIENT from MAIL_ALIAS - or all aliases when MAIL_ALIAS='_':
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# NOTE: If a matched alias has no additional recipients, it is also removed.
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( 'delete' )
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[[ ${MAIL_ALIAS} == '_' ]] && MAIL_ALIAS='\S\+'
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_db_entry_remove "${DATABASE_VIRTUAL}" "${MAIL_ALIAS}" "${RECIPIENT}"
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;;
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( * ) # This should not happen if using convenience wrapper methods:
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_exit_with_error "Unsupported Action: '${ACTION}'"
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;;
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esac
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}
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# Convenience wrappers:
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function _manage_virtual_aliases_update { _manage_virtual_aliases 'update' "${@}" ; } # addalias
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function _manage_virtual_aliases_delete { _manage_virtual_aliases 'delete' "${@}" ; } # delalias, delmailuser
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