SecurityConfig.java

package com.imjustdoom.pluginsite.config;

import lombok.AllArgsConstructor;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.authentication.dao.DaoAuthenticationProvider;
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.configuration.EnableWebSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
import org.springframework.security.crypto.password.PasswordEncoder;

@Configuration
@EnableWebSecurity
@AllArgsConstructor
public class SecurityConfig extends WebSecurityConfigurerAdapter {

    @Bean
    public PasswordEncoder encoder() {
        return new BCryptPasswordEncoder();
    }

    private final UserDetailsService userDetailsService;

    @Bean
    public DaoAuthenticationProvider authProvider() {
        DaoAuthenticationProvider authProvider = new DaoAuthenticationProvider();
        authProvider.setUserDetailsService(userDetailsService);
        authProvider.setPasswordEncoder(encoder());
        return authProvider;
    }

    @Override
    protected void configure(AuthenticationManagerBuilder auth) {
        auth.authenticationProvider(authProvider());
    }

    @Override
    public void configure(HttpSecurity http) throws Exception {
        http
                .csrf().disable()

                .authorizeRequests()
                .antMatchers("/admin", "/admin/roles").hasRole("ADMIN")
                .antMatchers("/resources/create", "/account/details").authenticated()
                .antMatchers("/signup", "/login").not().authenticated()

                .anyRequest().permitAll()

                .and()
                .formLogin().loginPage("/login");
    }
}