webssh2-server/dist/app/middleware/auth.middleware.js

A Websocket to SSH2 gateway using xterm.js, socket.io, ssh2

// app/middleware/auth.middleware.ts
// Authentication middleware for handling basic auth
import basicAuth from 'basic-auth';
import { HTTP } from '../constants.js';
import { processAuthentication, createSessionData } from './auth-processor.js';
import { isErr } from '../utils/index.js';
import { createNamespacedDebug } from '../logger.js';
const debug = createNamespacedDebug('middleware:auth');
/**
 * Create authentication middleware that handles basic auth
 * @param config - Application configuration
 * @returns Express middleware handler
 */
export function createAuthMiddleware(config) {
    return (req, res, next) => {
        const r = req;
        // Extract basic auth credentials from request
        const credentials = basicAuth(req);
        // Process authentication using pure function
        const authResult = processAuthentication(config, credentials);
        if (isErr(authResult)) {
            // Authentication failed
            res.setHeader(HTTP.AUTHENTICATE, HTTP.REALM);
            res.status(authResult.error.code).send(authResult.error.message);
            return;
        }
        // Create session data from auth result
        const sessionData = createSessionData(authResult.value);
        const session = r.session;
        if (session == null) {
            next();
            return;
        }
        Object.assign(session, sessionData);
        if (typeof session.save !== 'function') {
            next();
            return;
        }
        session.save((err) => {
            if (err != null) {
                debug('Session save error: %O', err);
            }
            next();
        });
    };
}