package com.dl.framework.config;

import com.dl.common.filter.RepeatableFilter;
import com.dl.common.filter.XssFilter;
import com.dl.common.utils.StringUtils;
import com.dl.framework.config.properties.XssProperties;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
import org.springframework.boot.web.servlet.FilterRegistrationBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import javax.servlet.DispatcherType;
import java.util.HashMap;
import java.util.Map;

/**
 * Filter配置
 *
 * @author Lion Li
 */
@Configuration
public class FilterConfig {

    @Autowired
    private XssProperties xssProperties;

    @SuppressWarnings({"rawtypes", "unchecked"})
    @Bean
    @ConditionalOnProperty(value = "xss.enabled", havingValue = "true")
    public FilterRegistrationBean xssFilterRegistration() {
        FilterRegistrationBean registration = new FilterRegistrationBean();
        registration.setDispatcherTypes(DispatcherType.REQUEST);
        registration.setFilter(new XssFilter());
        registration.addUrlPatterns(StringUtils.split(xssProperties.getUrlPatterns(), StringUtils.SEPARATOR));
        registration.setName("xssFilter");
        registration.setOrder(FilterRegistrationBean.HIGHEST_PRECEDENCE);
        Map<String, String> initParameters = new HashMap<String, String>();
        initParameters.put("excludes", xssProperties.getExcludes());
        registration.setInitParameters(initParameters);
        return registration;
    }

    @SuppressWarnings({"rawtypes", "unchecked"})
    @Bean
    public FilterRegistrationBean someFilterRegistration() {
        FilterRegistrationBean registration = new FilterRegistrationBean();
        registration.setFilter(new RepeatableFilter());
        registration.addUrlPatterns("/*");
        registration.setName("repeatableFilter");
        registration.setOrder(FilterRegistrationBean.LOWEST_PRECEDENCE);
        return registration;
    }

}