/AspNetCoreMVCMicrosoftAuth

Primary LanguageC#

Microsoft Authentication Integration in ASP.NET Core MVC

Introduction

This project implements a secure login system using Microsoft Azure App Registration in an ASP.NET Core MVC application, allowing users to authenticate using their Microsoft accounts.

Setup and Configuration

Azure App Registration

  1. Register a new application in the Azure Portal to obtain ClientId and ClientSecret.
  2. Configure these values in the ASP.NET Core application to set up the authentication service.

ASP.NET Core MVC Configuration

  • Integrate Microsoft authentication by adding necessary services and settings in Program.cs.
  • Use AddAuthentication() to specify ClientId and ClientSecret from Azure App Registration.
  • Configure DbContext to use SQL Server for storing user and role data.
  • Implement Identity for user and role management, including authentication and login policies.

UsersController: Handling Authentication

The UsersController manages login and logout functionalities, integrating external Microsoft account logins.

Key Methods

  • Login(): Displays the login form. Users can initiate the login process with their Microsoft account.
  • ExternalLogin(): Redirects the user for Microsoft account authentication and specifies the callback action.
  • RegisterExternalUser(): Handles the callback from Microsoft authentication, registers the user if new, and signs them in.
  • Logout(): Signs the user out of the application.

Authentication Flow

  1. The user clicks to log in using their Microsoft account.
  2. They are redirected to Microsoft for authentication.
  3. Upon successful authentication, the callback (RegisterExternalUser) either logs the user in directly (if already registered) or creates a new user account and then logs the user in.

Conclusion

Integrating Azure App Registration in an ASP.NET Core MVC application enables a secure and convenient way for users to log in using their Microsoft accounts, leveraging modern technologies to enhance software development quality.