145 lines
4.8 KiB
JavaScript
145 lines
4.8 KiB
JavaScript
'use strict';
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let log = require('npmlog');
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let config = require('config');
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let net = require('net');
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let campaigns = require('../lib/models/campaigns');
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let seenIds = new Set();
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let server = net.createServer(socket => {
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let remainder = '';
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let reading = false;
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let readNextChunk = () => {
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let chunk = socket.read();
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if (chunk === null) {
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reading = false;
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return;
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}
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reading = true;
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let lines = (remainder + chunk.toString()).split(/\r?\n/);
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remainder = lines.pop();
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let pos = 0;
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let checkNextLine = () => {
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if (pos >= lines.length) {
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return readNextChunk();
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}
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let line = lines[pos++];
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let match = /\bstatus=(bounced|sent)\b/.test(line) && line.match(/\bpostfix\/\w+\[\d+\]:\s*([^:]+).*?status=(\w+)/);
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if (match) {
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let queueId = match[1];
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let queued = '';
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let queued_as = '';
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if (seenIds.has(queueId)) {
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return checkNextLine();
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}
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seenIds.add(queueId);
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// Losacno: Check for local requeue
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let status = match[2];
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log.verbose('POSTFIXBOUNCE', 'Checking message %s for local requeue (status: %s)', queueId, status);
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if ( status === 'sent' ) {
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// Save new queueId to update message's previous queueId (thanks @mfechner )
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queued = / relay=/.test(line) && line.match(/status=sent \((.*)\)/);
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if ( queued ) {
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queued = queued[1];
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queued_as = queued.match(/ queued as (\w+)/);
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if (queued_as) {
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queued_as = queued_as[1];
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} else {
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queued_as = '';
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}
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}
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}
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campaigns.findMailByResponse(queueId, (err, message) => {
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if (err || !message) {
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return checkNextLine();
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}
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if ( queued_as || status === 'sent' ) {
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log.verbose('POSTFIXBOUNCE', 'Message %s locally requeued as %s', queueId, queued_as);
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// Update message's previous queueId (thanks @mfechner )
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campaigns.updateMessageResponse(message, queued, queued_as, (err, updated) => {
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if (err) {
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log.error('POSTFIXBOUNCE', 'Failed updating message: %s', err && err.stack);
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} else if (updated) {
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log.verbose('POSTFIXBOUNCE', 'Successfully changed message queueId to %s', queued_as);
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}
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});
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} else {
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campaigns.updateMessage(message, 'bounced', true, (err, updated) => {
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if (err) {
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log.error('POSTFIXBOUNCE', 'Failed updating message: %s', err && err.stack);
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} else if (updated) {
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log.verbose('POSTFIXBOUNCE', 'Marked message %s as bounced', queueId);
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}
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});
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}
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// No need to keep in memory... free it ( thanks @witzig )
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seenIds.delete(queueId);
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return checkNextLine();
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});
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return;
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} else {
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return checkNextLine();
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}
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};
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checkNextLine();
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};
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socket.on('readable', () => {
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if (reading) {
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return false;
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}
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readNextChunk();
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});
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});
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module.exports = callback => {
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if (!config.postfixbounce.enabled) {
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return setImmediate(callback);
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}
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let started = false;
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server.on('error', err => {
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const port = config.postfixbounce.port;
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const bind = typeof port === 'string' ? 'Pipe ' + port : 'Port ' + port;
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switch (err.code) {
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case 'EACCES':
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log.error('POSTFIXBOUNCE', '%s requires elevated privileges.', bind);
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break;
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case 'EADDRINUSE':
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log.error('POSTFIXBOUNCE', '%s is already in use', bind);
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break;
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default:
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log.error('POSTFIXBOUNCE', err);
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}
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if (!started) {
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started = true;
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return callback(err);
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}
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});
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server.listen(config.postfixbounce.port, config.postfixbounce.host, () => {
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if (started) {
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return server.close();
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}
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started = true;
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log.info('POSTFIXBOUNCE', 'Server listening on port %s', config.postfixbounce.port);
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setImmediate(callback);
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});
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};
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