backend: implement HttpContextService and middleware for managing HTTP context. Refactor base URL retrieval logic

backend/src/config/dependency-injector.config.ts

@@ -8,6 +8,7 @@ import {
 	FrontendEventService,
 	GCSService,
 	GCSStorageProvider,
+	HttpContextService,
 	LiveKitService,
 	LivekitWebhookService,
 	LoggerService,
@@ -52,6 +53,7 @@ export const registerDependencies = () => {
 	container.bind(DistributedEventService).toSelf().inSingletonScope();
 	container.bind(MutexService).toSelf().inSingletonScope();
 	container.bind(TaskSchedulerService).toSelf().inSingletonScope();
+	container.bind(HttpContextService).toSelf().inSingletonScope();
 
 	configureStorage(MEET_BLOB_STORAGE_MODE);
 	container.bind(StorageFactory).toSelf().inSingletonScope();

backend/src/controllers/auth.controller.ts

@@ -11,7 +11,7 @@ import {
 	rejectRequestFromMeetError
 } from '../models/error.model.js';
 import { AuthService, LoggerService, TokenService, UserService } from '../services/index.js';
-import { getCookieOptions } from '../utils/cookie-utils.js';
+import { getCookieOptions } from '../utils/index.js';
 
 export const login = async (req: Request, res: Response) => {
 	const logger = container.get(LoggerService);

backend/src/controllers/participant.controller.ts

@@ -9,7 +9,7 @@ import {
 	rejectRequestFromMeetError
 } from '../models/error.model.js';
 import { LoggerService, ParticipantService, RoomService, TokenService } from '../services/index.js';
-import { getCookieOptions } from '../utils/cookie-utils.js';
+import { getCookieOptions } from '../utils/index.js';
 
 export const generateParticipantToken = async (req: Request, res: Response) => {
 	const logger = container.get(LoggerService);

backend/src/controllers/recording.controller.ts

@@ -3,7 +3,6 @@ import { Request, Response } from 'express';
 import { Readable } from 'stream';
 import { container } from '../config/index.js';
 import INTERNAL_CONFIG from '../config/internal-config.js';
-import { getBaseUrl } from '../environment.js';
 import { RecordingHelper } from '../helpers/index.js';
 import {
 	errorRecordingNotFound,
@@ -13,6 +12,7 @@ import {
 	rejectRequestFromMeetError
 } from '../models/error.model.js';
 import { LoggerService, MeetStorageService, RecordingService } from '../services/index.js';
+import { getBaseUrl } from '../utils/index.js';
 
 export const startRecording = async (req: Request, res: Response) => {
 	const logger = container.get(LoggerService);
@@ -125,10 +125,7 @@ export const stopRecording = async (req: Request, res: Response) => {
 		const recordingService = container.get(RecordingService);
 
 		const recordingInfo = await recordingService.stopRecording(recordingId);
-		res.setHeader(
-			'Location',
-			`${getBaseUrl()}${INTERNAL_CONFIG.API_BASE_PATH_V1}/recordings/${recordingId}`
-		);
+		res.setHeader('Location', `${getBaseUrl()}${INTERNAL_CONFIG.API_BASE_PATH_V1}/recordings/${recordingId}`);
 		return res.status(202).json(recordingInfo);
 	} catch (error) {
 		handleError(res, error, `stopping recording '${recordingId}'`);

backend/src/controllers/room.controller.ts

@@ -10,10 +10,9 @@ import {
 import { Request, Response } from 'express';
 import { container } from '../config/index.js';
 import INTERNAL_CONFIG from '../config/internal-config.js';
-import { getBaseUrl } from '../environment.js';
 import { handleError } from '../models/error.model.js';
 import { LoggerService, ParticipantService, RoomService } from '../services/index.js';
-import { getCookieOptions } from '../utils/cookie-utils.js';
+import { getBaseUrl, getCookieOptions } from '../utils/index.js';
 
 export const createRoom = async (req: Request, res: Response) => {
 	const logger = container.get(LoggerService);

backend/src/environment.ts

@@ -20,7 +20,7 @@ export const {
 	SERVER_CORS_ORIGIN = '*',
 	MEET_LOG_LEVEL = 'info',
 	MEET_NAME_ID = 'openviduMeet',
-	MEET_BASE_URL = `http://localhost:${SERVER_PORT}`,
+	MEET_BASE_URL = '',
 
 	/**
 	 * Authentication configuration
@@ -86,13 +86,6 @@ export const {
 	ENABLED_MODULES = ''
 } = process.env;
 
-/**
- * Gets the base URL without trailing slash
- */
-export const getBaseUrl = (): string => {
-	return MEET_BASE_URL.endsWith('/') ? MEET_BASE_URL.slice(0, -1) : MEET_BASE_URL;
-};
-
 export function checkModuleEnabled() {
 	if (MODULES_FILE) {
 		const moduleName = MODULE_NAME;

backend/src/middlewares/http-context.middleware.ts

@@ -0,0 +1,15 @@
+import { NextFunction, Request, Response } from 'express';
+import { container } from '../config/dependency-injector.config.js';
+import { HttpContextService } from '../services/index.js';
+
+export const httpContextMiddleware = (req: Request, res: Response, next: NextFunction) => {
+	const httpContextService = container.get(HttpContextService);
+	httpContextService.setContext(req);
+
+	// Clear context after response is finished
+	res.on('finish', () => {
+		httpContextService.clearContext();
+	});
+
+	next();
+};

backend/src/middlewares/index.ts

@@ -1,4 +1,5 @@
 export * from './content-type.middleware.js';
+export * from './http-context.middleware.js';
 export * from './auth.middleware.js';
 export * from './room.middleware.js';
 export * from './participant.middleware.js';

backend/src/server.ts

@@ -5,7 +5,7 @@ import express, { Express, Request, Response } from 'express';
 import { initializeEagerServices, registerDependencies } from './config/index.js';
 import INTERNAL_CONFIG from './config/internal-config.js';
 import { SERVER_CORS_ORIGIN, SERVER_PORT, logEnvVars } from './environment.js';
-import { jsonSyntaxErrorHandler } from './middlewares/index.js';
+import { httpContextMiddleware, jsonSyntaxErrorHandler } from './middlewares/index.js';
 import {
 	authRouter,
 	configRouter,
@@ -24,7 +24,7 @@ import {
 	internalApiHtmlFilePath,
 	publicApiHtmlFilePath,
 	webcomponentBundlePath
-} from './utils/path-utils.js';
+} from './utils/path.utils.js';
 
 const createApp = () => {
 	const app: Express = express();
@@ -41,10 +41,14 @@ const createApp = () => {
 
 	// Serve static files
 	app.use(express.static(frontendDirectoryPath));
+
 	app.use(express.json());
 	app.use(jsonSyntaxErrorHandler);
 	app.use(cookieParser());
 
+	// Middleware to set HTTP context
+	app.use(httpContextMiddleware);
+
 	// Public API routes
 	app.use(`${INTERNAL_CONFIG.API_BASE_PATH_V1}/docs`, (_req: Request, res: Response) =>
 		res.sendFile(publicApiHtmlFilePath)

backend/src/services/http-context.service.ts

@@ -0,0 +1,39 @@
+import { Request } from 'express';
+import { injectable } from 'inversify';
+import { SERVER_PORT } from '../environment.js';
+
+@injectable()
+export class HttpContextService {
+	private baseUrl: string;
+
+	constructor() {
+		this.baseUrl = this.getDefaultBaseUrl();
+	}
+
+	/**
+	 * Sets the current HTTP context from the request
+	 */
+	setContext(req: Request): void {
+		const protocol = req.protocol;
+		const host = req.get('host');
+		this.baseUrl = `${protocol}://${host}`;
+	}
+
+	/**
+	 * Gets the base URL from the current context
+	 */
+	getBaseUrl(): string {
+		return this.baseUrl;
+	}
+
+	/**
+	 * Clears the current context
+	 */
+	clearContext(): void {
+		this.baseUrl = this.getDefaultBaseUrl();
+	}
+
+	private getDefaultBaseUrl(): string {
+		return `http://localhost:${SERVER_PORT}`;
+	}
+}

backend/src/services/index.ts

@@ -3,6 +3,7 @@ export * from './redis.service.js';
 export * from './distributed-event.service.js';
 export * from './mutex.service.js';
 export * from './task-scheduler.service.js';
+export * from './http-context.service.js';
 
 export * from './storage/index.js';
 

backend/src/services/livekit.service.ts

@@ -23,7 +23,7 @@ import {
 	internalError,
 	OpenViduMeetError
 } from '../models/error.model.js';
-import { chunkArray } from '../utils/array.utils.js';
+import { chunkArray } from '../utils/index.js';
 import { LoggerService } from './index.js';
 
 @injectable()

backend/src/services/storage/storage.service.ts

@@ -3,7 +3,6 @@ import { inject, injectable } from 'inversify';
 import ms from 'ms';
 import { Readable } from 'stream';
 import {
-	getBaseUrl,
 	MEET_INITIAL_ADMIN_PASSWORD,
 	MEET_INITIAL_ADMIN_USER,
 	MEET_INITIAL_API_KEY,
@@ -20,6 +19,7 @@ import {
 	OpenViduMeetError,
 	RedisKeyName
 } from '../../models/index.js';
+import { getBaseUrl } from '../../utils/index.js';
 import { LoggerService, MutexService, RedisService } from '../index.js';
 import { StorageFactory } from './storage.factory.js';
 import { StorageKeyBuilder, StorageProvider } from './storage.interface.js';

backend/src/utils/index.ts

@@ -0,0 +1,3 @@
+export * from './array.utils.js';
+export * from './cookie.utils.js';
+export * from './url.utils.js';

backend/src/utils/url.utils.ts

@@ -0,0 +1,21 @@
+import { container } from '../config/dependency-injector.config.js';
+import { MEET_BASE_URL } from '../environment.js';
+import { HttpContextService } from '../services/http-context.service.js';
+
+/**
+ * Returns the base URL for the application.
+ *
+ * If the global `MEET_BASE_URL` variable is defined, it returns its value,
+ * ensuring there is no trailing slash. Otherwise, it retrieves the base URL
+ * from the `HttpContextService` instance.
+ *
+ * @returns {string} The base URL as a string.
+ */
+export const getBaseUrl = (): string => {
+	if (MEET_BASE_URL) {
+		return MEET_BASE_URL.endsWith('/') ? MEET_BASE_URL.slice(0, -1) : MEET_BASE_URL;
+	}
+
+	const httpContextService = container.get(HttpContextService);
+	return httpContextService.getBaseUrl();
+};