Adding Security to a Web Application Deployed on Embedded Jetty

Ahoy matey! If you’re looking to protect your web application from unwelcome scallywags, you’ve come to the right place. In this article, we’ll show you how to add security to a web application deployed on Embedded Jetty, including configuring SSL and setting up authentication.

Configuring SSL

First things first, let’s make sure our connection to the server is secure. That’s where SSL (Secure Sockets Layer) comes in. SSL is a protocol that encrypts data between the client and the server, ensuring that no one can eavesdrop on the conversation.

To configure SSL in Embedded Jetty, we need to create a keystore file that contains the server’s private key and certificate. The keystore file is used by the server to authenticate itself to clients.

SslContextFactory sslContextFactory = new SslContextFactory();
sslContextFactory.setKeyStorePath("/path/to/keystore.jks");
sslContextFactory.setKeyStorePassword("keystorePassword");
sslContextFactory.setKeyManagerPassword("keyManagerPassword");

ServerConnector httpsConnector = new ServerConnector(server, sslContextFactory);
httpsConnector.setPort(8443);

server.addConnector(httpsConnector);

In this example, we create an SslContextFactory and set the path to the keystore file, as well as the passwords needed to access it. We then create a ServerConnector with the SslContextFactory, set the port to 8443 (the default port for HTTPS), and add it to the server.

Setting up Authentication

Now that our connection is secure, let’s make sure that only authenticated users can access our web application. We’ll use basic authentication, which sends the username and password in plaintext, but it’s better than nothing.

To set up basic authentication in Embedded Jetty, we need to create a ConstraintSecurityHandler and add it to the server.

HashLoginService loginService = new HashLoginService("MyRealm", "/path/to/realm.properties");
loginService.setRefreshInterval(0);

ConstraintSecurityHandler securityHandler = new ConstraintSecurityHandler();
securityHandler.setLoginService(loginService);

Constraint constraint = new Constraint();
constraint.setName("auth");
constraint.setAuthenticate(true);
constraint.setRoles(new String[]{"user"});

ConstraintMapping mapping = new ConstraintMapping();
mapping.setPathSpec("/*");
mapping.setConstraint(constraint);

securityHandler.setConstraintMappings(Collections.singletonList(mapping));

HandlerCollection handlers = new HandlerCollection();
handlers.setHandlers(new Handler[]{securityHandler, new WebAppContext("webapp", "/")});

server.setHandler(handlers);

In this example, we create a HashLoginService with the name “MyRealm” and the path to a realm.properties file that contains the usernames and passwords of our users. We then create a ConstraintSecurityHandler and set the HashLoginService as the login service.

Next, we create a Constraint that requires authentication and assigns the “user” role to authenticated users. We create a ConstraintMapping that applies this constraint to all paths, and set it on the ConstraintSecurityHandler.

Finally, we create a HandlerCollection that contains both the ConstraintSecurityHandler and the WebAppContext for our web application. We set this HandlerCollection on the server.

Conclusion

Congratulations, you’ve added security to your web application deployed on Embedded Jetty! With SSL and basic authentication, your users’ data is safe from prying eyes. Keep in mind that basic authentication is not very secure, so if you’re dealing with sensitive data, you’ll want to look into more advanced authenticationmethods.

Some other authentication methods that you might consider include OAuth2, OpenID Connect, and JSON Web Tokens (JWTs). These methods use tokens and advanced encryption techniques to secure your users’ data.

Remember, security is not a one-time fix. It’s an ongoing process that requires constant attention and updates. Keep up with the latest security trends and best practices to ensure that your web application remains safe and secure.

That’s all for now, mateys! We hope this article has been helpful in securing your web application deployed on Embedded Jetty. If you have any questions or comments, feel free to reach out to us on our pirate-themed website. Until next time, fair winds and following seas!