package com.jilongda.common.security.filter;
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import com.fasterxml.jackson.databind.ObjectMapper;
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import com.fasterxml.jackson.databind.module.SimpleModule;
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import org.springframework.context.annotation.Bean;
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import org.springframework.context.annotation.Primary;
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import org.springframework.http.converter.json.Jackson2ObjectMapperBuilder;
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import javax.servlet.*;
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import javax.servlet.http.HttpServletRequest;
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import java.io.IOException;
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/**
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* @author yu 2019/1/20.
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*/
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public class XssFilter implements Filter {
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@Override
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public void init(FilterConfig filterConfig) throws ServletException {
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}
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@Override
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public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
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throws IOException, ServletException {
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HttpServletRequest req = (HttpServletRequest) request;
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XssAndSqlHttpServletRequestWrapper xssRequestWrapper = new XssAndSqlHttpServletRequestWrapper(req);
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chain.doFilter(xssRequestWrapper, response);
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}
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@Override
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public void destroy() {
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}
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/**
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* 过滤json类型的
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*
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* @param builder
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* @return
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*/
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@Bean
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@Primary
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public ObjectMapper xssObjectMapper(Jackson2ObjectMapperBuilder builder) {
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//解析器
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ObjectMapper objectMapper = builder.createXmlMapper(false).build();
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//注册xss解析器
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SimpleModule xssModule = new SimpleModule("XssStringJsonSerializer");
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xssModule.addSerializer(new XssStringJsonSerializer());
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objectMapper.registerModule(xssModule);
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//返回
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return objectMapper;
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}
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}
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