fix: config: make bounce rules file path configurable (#484)

Author: Gladiak

config/default.js

@@ -1,5 +1,7 @@
 'use strict';
 
+const path = require('path');
+
 module.exports = {
     // If started as root then privileges are dropped after all ports are bound
     //user: 'nobody',
@@ -515,6 +517,9 @@ module.exports = {
         */
     },
 
+    // Bounce rules file path
+    bouncesFile: path.join(__dirname, 'bounces.txt'),
+
     pluginsPath: './plugins',
     corePluginsPath: './plugins'
 };

lib/bounces.js

@@ -1,22 +1,25 @@
 'use strict';
 
+const config = require('@zone-eu/wild-config');
 const log = require('npmlog');
 const fs = require('fs');
 const path = require('path');
 const { gelfCode, emitGelf } = require('./log-gelf');
+const DEFAULT_BOUNCES_FILE = path.join(__dirname, '..', 'config', 'bounces.txt');
 
 function reloadBounces() {
     let body;
+    let bouncesFile = config.bouncesFile || DEFAULT_BOUNCES_FILE;
 
     try {
-        body = fs.readFileSync(path.join(__dirname, '..', 'config', 'bounces.txt'), 'utf-8');
+        body = fs.readFileSync(bouncesFile, 'utf-8');
     } catch (E) {
         log.error('Bounces/' + process.pid, 'Could not load bounce rules. %s', E.message);
         emitGelf({
             short_message: `${gelfCode('BOUNCE_RULES_LOAD_FAILED')} Could not load bounce rules`,
             full_message: E && E.stack ? E.stack : undefined,
             _logger: 'Bounces/' + process.pid,
-            _file: path.join(__dirname, '..', 'config', 'bounces.txt'),
+            _file: bouncesFile,
             _error: E.message
         });
         if (module.exports.rules && module.exports.rules.length) {