Authentication Example Web Application

This is a simple web application that supports three types of authentication:

1. Form-based Authentication
2. HTTP Digest Authentication
3. Google OAuth Authentication

The app is built using Node.js, Express, and Passport.js, and can be easily deployed using Docker.

Setup Instructions

1. Clone the Repository

Clone this repository to your local machine using Git:

git clone https://github.com/faetschi/auth-app.git
cd auth-app

2. Build and Run the App using Docker

Ensure you have Docker and Docker Compose installed, then run:

docker-compose up --build

The application will be available at http://localhost:3000.

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Authentication Methods

1. Form-based Authentication

• Visit: http://localhost:3000/login.html
• Enter the following credentials:
  • Username: testuser
  • Password: password
• Upon successful login, you should see an alert saying "Login successful" and be redirected to /profile.

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2. HTTP Digest Authentication

• Visit: http://localhost:3000/auth/digest
• When prompted for credentials, use:
  • Username: testuser
  • Password: password
• Upon successful authentication, you will see a message confirming the authentication.

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3. Google OAuth Authentication

• Visit: http://localhost:3000/auth/google
• You will be redirected to the Google login page.
• Log in using your Google account.
• Upon successful authentication, you will be redirected to /profile.

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Routes Overview

Route	Method	Description
/	GET	Homepage with links to all authentication methods
/login	POST	Form-based login (username & password)
/auth/digest	GET	HTTP Digest authentication
/auth/google	GET	Google OAuth authentication (redirect to Google)
/auth/google/callback	GET	Callback URL for Google OAuth
/profile	GET	Profile page (accessible only after login)
/logout	GET	Logout and redirect to the homepage

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Environment Variables

The following environment variables are required for Google OAuth authentication:

• GOOGLE_CLIENT_ID: Your Google OAuth Client ID
• GOOGLE_CLIENT_SECRET: Your Google OAuth Client Secret

You can set these variables in docker-compose.yml: