How will you implement security in spring boot using UserDetailsService?

Example of implementing UserDetailsService

1. What Software/Technologies would you need?
2. Step#1 : Create a Spring Boot Starter Project in STS(Spring Tool Suite)
3. Step#2 : Update database properties in application.
4. Step#5 : Create Service Interface & Service Implementation class.
5. Step#8 : Write UI pages(Thymeleaf)

How do I add Spring Security dependency in POM XML?

For adding a Spring Boot Security to your Spring Boot application, we need to add the Spring Boot Starter Security dependency in our build configuration file. Maven users can add the following dependency in the pom. xml file. Gradle users can add the following dependency in the build.

How do you secure endpoints in spring boot?

You do that by configuring Spring Security in the application. If Spring Security is on the classpath, Spring Boot automatically secures all HTTP endpoints with “basic” authentication. However, you can further customize the security settings. The first thing you need to do is add Spring Security to the classpath.

How do I allow all requests in Spring Security?

In the above method chain,

1. authorizeRequests() instructs spring security to restrict requests based on URL patterns and/or user roles.
2. anyRequest() configures all requests to be authorized irrespective of URL patterns.
3. permitAll() is applied to permit or allow all requests.

How do I authenticate a user from database in spring boot?

Spring Boot Security Form Authentication with JDBC and MySQL

1. Create users table and dummy credentials.
2. Configure Data Source Properties.
3. Declare Dependencies for Spring Security and MySQL JDBC Driver.
4. Configure JDBC Authentication Details.
5. Test Login and Logout.

How do I use Spring Security in REST API?

A simple secure REST API

1. Provide a UI with a button that sends a request to a back-end endpoint.
2. Provide a username and password field for users to log in.
3. If the API button is clicked and the user is not logged in, reject the endpoint call with a “HTTP 401 Forbidden” response.

How do I add Spring Security to an existing project?

This guide provides instructions on how to add Spring Security to an existing application without the use of XML….Import the insecure sample application

1. File→Import.
2. Existing Maven Projects.
3. Click Next >
4. Click Browse… ​
5. Navigate to the samples (i.e. SPRING_SECURITY_HOME/samples/xml/insecure) and click OK.
6. Click Finish.

How do you secure an actuator endpoint?

Secure Actuator Endpoints

1. The Actuator endpoints reveal sensitive information about the application.
2. Enable All Endpoints.
3. Enable Specific Endpoints.
4. To password protect the endpoints, you need to add starter dependency on Spring Security.
5. Gradle.
6. Maven.
7. Then, Add Authorization Header with Basic Auth.

What is difference between WebSecurity and HttpSecurity?

Summary. We can actually consider that WebSecurity is the only external outlet for Spring Security, while HttpSecurity is just the way internal security policies are defined; WebSecurity is aligned to FilterChainProxy , while HttpSecurity is aligned to SecurityFilterChain .

What is difference between AuthenticationManager and AuthenticationProvider?

The Authentication Manager is only a interface and actual implementation of the authenticate method is provided by the ProviderManager. The ProviderManager has a list of AuthenticationProviders. From it’s authenticate method it calls the authenticate method of the appropriate AuthenticateProvider.

What is SecurityContextHolder getContext () getAuthentication ()?

The HttpServletRequest.getUserPrincipal() will return the result of SecurityContextHolder.getContext().getAuthentication() . This means it is an Authentication which is typically an instance of UsernamePasswordAuthenticationToken when using username and password based authentication.

What is CrossOrigin annotation?

This @CrossOrigin annotation enables cross-origin resource sharing only for this specific method. By default, its allows all origins, all headers, and the HTTP methods specified in the @RequestMapping annotation. Also, a maxAge of 30 minutes is used.

How do I protect database credentials in spring boot?

Hence following are the different methods to pass the secret key:

1. Pass it as a property in the config file. Run the project as usual and the decryption would happen.
2. Run the project with the following command: $mvn-Djasypt.encryptor.password=secretkey spring-boot:run.
3. Export Jasypt Encryptor Password: