package com.linyuan.oauth2config.config;

import com.linyuan.oauth2config.constants.AuthoritiesEnum;
import lombok.AllArgsConstructor;
import org.springframework.beans.factory.BeanInitializationException;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
import org.springframework.security.config.annotation.method.configuration.EnableGlobalMethodSecurity;
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.config.http.SessionCreationPolicy;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
import org.springframework.security.crypto.password.PasswordEncoder;

import javax.annotation.PostConstruct;

/**
 * @author: 林塬
 * @date: 2018/1/20
 * @description: Web 权限配置类
 */
@Configuration
@EnableWebSecurity
@EnableGlobalMethodSecurity(prePostEnabled = true, securedEnabled = true)
public abstract class AbstractSecurityConfig extends WebSecurityConfigurerAdapter {

    @Autowired
    private AuthenticationManagerBuilder authenticationManagerBuilder;

    @Autowired
    private UserDetailsService userDetailsService;

    @PostConstruct
    public void init() {
        try {
            authenticationManagerBuilder
                    .userDetailsService(userDetailsService)
                    .passwordEncoder(passwordEncoder());
        } catch (Exception e) {
            throw new BeanInitializationException("Security configuration failed", e);
        }
    }

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

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http
                .exceptionHandling()
                .and()
                .csrf()
                .disable()
                .headers()
                .frameOptions()
                .disable()
                .and()
                .sessionManagement()
                .sessionCreationPolicy(SessionCreationPolicy.STATELESS)
                .and()
                .authorizeRequests()
                .antMatchers("/swagger-ui/index.html").hasAuthority(AuthoritiesEnum.ADMIN.getRole());
    }

}