Spring Security LDAP Config

LdapSecurityConfig.java

package package.name;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.env.Environment;
import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.builders.WebSecurity;
import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.ldap.authentication.ad.ActiveDirectoryLdapAuthenticationProvider;
import org.springframework.security.ldap.userdetails.InetOrgPersonContextMapper;

import custom.security.classes.package.AccessDeniedHandlerImpl;
import custom.security.classes.package.AuthenticationFailureHandlerImpl;

@Configuration
@EnableWebSecurity
public class SecurityConfig  extends WebSecurityConfigurerAdapter {
	
	@Value("${ldapauthenticationprovider.domain}")
	private String domain;

	@Value("${ldapauthenticationprovider.url}")
	private String url;
	
	@Value("${authorities}")
	private String authorities;
	
	@Autowired
	Environment environment;
	
	@Autowired
	AuthenticationFailureHandlerImpl authenticationFailureHandlerImpl;
	
	@Autowired
	AccessDeniedHandlerImpl accessDeniedHandlerImpl;
	
	@Bean
	public ActiveDirectoryLdapAuthenticationProvider activeDirectoryLdapAuthenticationProvider() {
		ActiveDirectoryLdapAuthenticationProvider authenticationProvider = new ActiveDirectoryLdapAuthenticationProvider(domain, url);
		authenticationProvider.setUserDetailsContextMapper(new InetOrgPersonContextMapper());
		authenticationProvider.setConvertSubErrorCodesToExceptions(true);
		return authenticationProvider;
	}
	
	@Override
	protected void configure(AuthenticationManagerBuilder authenticationManagerBuilder) {
		authenticationManagerBuilder.authenticationProvider(activeDirectoryLdapAuthenticationProvider());
	}
	
	@Override
    public void configure( WebSecurity web ) throws Exception
    {
        // ensure that the static content (js, css) is accessible from the login page without authentication
        web.
            ignoring().
                antMatchers( "/dist/**","/fonts/**" );
    }
	
	 @Override
	 protected void configure(HttpSecurity http) throws Exception {
        http.
        	exceptionHandling().
        		accessDeniedHandler(accessDeniedHandlerImpl).
        		and().
    		authorizeRequests().
        		antMatchers( "/login" ).permitAll().
        		antMatchers("/", "/logout").hasAnyAuthority(authorities.split(",")).
        		anyRequest().authenticated().
        		and().
        	formLogin().
        		loginPage("/login").
        		usernameParameter("username").
        		passwordParameter("password").
        		defaultSuccessUrl("/").
        		failureHandler(authenticationFailureHandlerImpl).
        		and().
        	logout().
            	logoutUrl("/logout").
            	invalidateHttpSession(true).
            	logoutSuccessUrl("/login");
	}
	 
}