Getting credentials in a SpringBoot 2.1.4.RELEASE app - spring

Question

I have a SpringBoot 2.1.4.RELEASE app. with those methods in the security config file:
#Override
protected void configure(HttpSecurity http) throws Exception {
http
.authorizeRequests()
.antMatchers(publicMatchers()).permitAll()
.anyRequest().authenticated()
.and()
.formLogin().loginPage("/login").defaultSuccessUrl("/calzadas/list")
.failureUrl("/login?error").permitAll()
.and()
.logout().permitAll();
}
#Autowired
public void configureGlobal(AuthenticationManagerBuilder auth) throws Exception {
auth
.eraseCredentials(false)
.userDetailsService(userSecurityService)
.passwordEncoder(passwordEncoder());
}
and here my LoginController
#Controller
public class LoginController extends ICryptsController {
private static final Logger LOG = LoggerFactory.getLogger(LoginController.class);
/** The login view name */
public static final String LOGIN_VIEW_NAME = "login/login";
#RequestMapping(value={ "/", "/login"}, method = {RequestMethod.GET})
public String login() {
return serverContextPath + "/" + LOGIN_VIEW_NAME;
}
}
but I don't now from where to extract the credentials of the user in plain text (user / pwd)

Answer 1

You can retrieve the credentials from method arguments in your controller class. For example. Since you gave a success url, you can do this.
#Controller
public class LoginController extends ICryptsController {
...
#RequestMapping(value={ "/calzadas/list"}, method = {RequestMethod.GET})
public void list(Authentication auth) {
Object credentials = auth.getCredentials();
}
This is just one way, there are many examples on the internet.