Maxfield Luke
67c1d41a0c
Fresh repository history for elektrine/elektrine-haraka hosted at https://git.elektrine.com/elektrine/elektrine-haraka.
79 lines
2.2 KiB
JavaScript
79 lines
2.2 KiB
JavaScript
/**
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* Elektrine Local MX Routing Plugin
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*
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* Routes local/protected domains to the internal inbound service instead of
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* external/public MX records. This keeps local delivery on the
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* inbound -> queue -> worker -> Phoenix path.
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*/
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'use strict';
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const constants = require('haraka-constants');
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const { domains } = require('../lib');
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const DEFAULTS = {
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enabled: true,
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host: 'haraka-inbound',
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port: 25
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};
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function to_int(value, fallback) {
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const parsed = parseInt(value, 10);
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return Number.isFinite(parsed) ? parsed : fallback;
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}
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exports.register = function () {
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this.load_config();
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this.register_hook('get_mx', 'route_local_mx');
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domains.init((msg) => this.logdebug(`domains: ${msg}`))
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.catch((err) => {
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this.logwarn(`Domain cache init failed: ${err.message}`);
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});
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if (this.cfg.enabled) {
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this.loginfo(`Local MX routing enabled -> ${this.cfg.host}:${this.cfg.port}`);
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} else {
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this.loginfo('Local MX routing disabled');
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}
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};
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exports.load_config = function () {
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const plugin = this;
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const cfg = this.config.get('elektrine_local_mx.ini', {
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booleans: ['+main.enabled']
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}, () => {
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plugin.load_config();
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});
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const main = (cfg && cfg.main) ? cfg.main : {};
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this.cfg = {
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enabled: main.enabled !== undefined ? main.enabled : DEFAULTS.enabled,
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host: main.host || DEFAULTS.host,
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port: to_int(main.port, DEFAULTS.port)
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};
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if (process.env.ELEKTRINE_LOCAL_MX_HOST) {
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this.cfg.host = process.env.ELEKTRINE_LOCAL_MX_HOST;
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}
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if (process.env.ELEKTRINE_LOCAL_MX_PORT) {
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this.cfg.port = to_int(process.env.ELEKTRINE_LOCAL_MX_PORT, this.cfg.port);
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}
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};
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exports.route_local_mx = function (next, hmail, domain) {
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if (!this.cfg.enabled) return next();
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const recipient_domain = String(domain || '').toLowerCase();
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if (!recipient_domain) return next();
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if (!domains.is_local_domain(recipient_domain)) return next();
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this.loginfo(`Routing local domain ${recipient_domain} to ${this.cfg.host}:${this.cfg.port}`);
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return next(constants.OK, {
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priority: 0,
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exchange: this.cfg.host,
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port: this.cfg.port
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});
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};
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