[feature] Add moduleReloader.js to integrate runtime.json into config on startup

Common/sources/moduleReloader.js

@@ -0,0 +1,96 @@
+/*
+ * (c) Copyright Ascensio System SIA 2010-2024
+ *
+ * This program is a free software product. You can redistribute it and/or
+ * modify it under the terms of the GNU Affero General Public License (AGPL)
+ * version 3 as published by the Free Software Foundation. In accordance with
+ * Section 7(a) of the GNU AGPL its Section 15 shall be amended to the effect
+ * that Ascensio System SIA expressly excludes the warranty of non-infringement
+ * of any third-party rights.
+ *
+ * This program is distributed WITHOUT ANY WARRANTY; without even the implied
+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR  PURPOSE. For
+ * details, see the GNU AGPL at: http://www.gnu.org/licenses/agpl-3.0.html
+ *
+ * You can contact Ascensio System SIA at 20A-6 Ernesta Birznieka-Upish
+ * street, Riga, Latvia, EU, LV-1050.
+ *
+ * The  interactive user interfaces in modified source and object code versions
+ * of the Program must display Appropriate Legal Notices, as required under
+ * Section 5 of the GNU AGPL version 3.
+ *
+ * Pursuant to Section 7(b) of the License you must retain the original Product
+ * logo when distributing the program. Pursuant to Section 7(e) we decline to
+ * grant you any rights under trademark law for use of our trademarks.
+ *
+ * All the Product's GUI elements, including illustrations and icon sets, as
+ * well as technical writing content are licensed under the terms of the
+ * Creative Commons Attribution-ShareAlike 4.0 International. See the License
+ * terms at http://creativecommons.org/licenses/by-sa/4.0/legalcode
+ *
+ */
+
+'use strict';
+
+const fs = require('fs');
+
+/**
+ * Reloads an NPM module by clearing it from require.cache and re-requiring it
+ * @param {string} moduleName - Name of the module to reload
+ * @returns {Object} The freshly loaded module
+ */
+function reloadNpmModule(moduleName) {
+  try {
+    const moduleId = require.resolve(moduleName);
+    delete require.cache[moduleId];
+    return require(moduleName);
+  } catch (error) {
+    console.error(`Failed to reload module ${moduleName}:`, error.message);
+    throw error;
+  }
+}
+
+/**
+ * Requires config module with runtime configuration support
+ * @param {Object} opt_additionalConfig - Additional configuration to merge
+ * @returns {Object} config module
+ */
+function requireConfigWithRuntime(opt_additionalConfig) {
+  let config = require('config');
+  try {
+    const configFilePath = config.get('runtimeConfig.filePath');
+    if (configFilePath) {
+      // Update NODE_CONFIG with runtime configuration
+      if (configFilePath) {
+        const configData = fs.readFileSync(configFilePath, 'utf8');
+        
+        let curNodeConfig;
+        if (process.env['NODE_CONFIG']) {
+          curNodeConfig = JSON.parse(process.env['NODE_CONFIG']);
+        } else {
+          curNodeConfig = {};
+        }
+        
+        const fileConfig = JSON.parse(configData);
+        
+        // Merge configurations: NODE_CONFIG -> runtime -> additional
+        curNodeConfig = config.util.extendDeep(curNodeConfig, fileConfig);
+        if (opt_additionalConfig) {
+          curNodeConfig = config.util.extendDeep(curNodeConfig, opt_additionalConfig);
+        }
+        
+        process.env['NODE_CONFIG'] = JSON.stringify(curNodeConfig);
+      }
+      
+      config = reloadNpmModule('config');
+    }
+  } catch (err) {
+    console.error('Failed to load runtime config: %s', err.stack);
+  }
+  return config;
+}
+
+module.exports = {
+  reloadNpmModule,
+  requireConfigWithRuntime
+};

DocService/sources/server.js

@@ -32,7 +32,8 @@
 
 'use strict';
 
-const config = require('config');
+const moduleReloader = require('./../../Common/sources/moduleReloader');
+const config = moduleReloader.requireConfigWithRuntime();
 //process.env.NODE_ENV = config.get('services.CoAuthoring.server.mode');
 const logger = require('./../../Common/sources/logger');
 const co = require('co');