package com.xcong.excoin.configurations.security;

import lombok.extern.slf4j.Slf4j;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.HttpMethod;
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.core.userdetails.UserDetailsService;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
import org.springframework.security.crypto.password.PasswordEncoder;
import org.springframework.security.web.AuthenticationEntryPoint;
import org.springframework.security.web.access.AccessDeniedHandler;

import javax.annotation.Resource;

/**
 * @author wzy
 * @date 2020-05-11
 **/
@Slf4j
@Configuration
@EnableWebSecurity
@EnableGlobalMethodSecurity(prePostEnabled = true)
public class WebSecurityConfig extends WebSecurityConfigurerAdapter {

    @Resource
    private UserDetailsService userDetailsService;

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http.httpBasic().and().
                cors().and().csrf().disable()
                .exceptionHandling().authenticationEntryPoint(authenticationEntryPoint())
                .and()
                .authorizeRequests()
                .antMatchers(HttpMethod.OPTIONS, "/**").permitAll()
                .antMatchers("/login").permitAll()
                .antMatchers("/register").permitAll()
                .antMatchers("/swagger**/**").permitAll()
                .antMatchers("/webjars/**").permitAll()
                .antMatchers("/v2/**").permitAll()
                .anyRequest().authenticated()
                .and().apply(securityConfiguereAdapter());
    }

    @Override
    protected void configure(AuthenticationManagerBuilder auth) throws Exception {
        auth.userDetailsService(userDetailsService).passwordEncoder(passwordEncoder());
    }

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

    @Bean
    public AccessDeniedHandler accessDeniedHandler() {
        return new CustomAccessDeniedHandler();
    }

    @Bean
    public AuthenticationEntryPoint authenticationEntryPoint() {
        return new CustomAuthenticationEntryPoint();
    }

    public TokenConfigurer securityConfiguereAdapter() {
        return new TokenConfigurer();
    }
}