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zj

2025-03-20 697c08d94a3c26aaa970c467775989bb548fb6c2

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package kernel.web;
 
import java.io.IOException;
import java.util.Locale;
 
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
 
import kernel.util.StringUtils;
 
public class Web114Filter implements Filter {
    
    public void destroy() {}
 
    public void doFilter(ServletRequest request, ServletResponse response, FilterChain filterChain)
            throws IOException, ServletException {
        String contentType = request.getContentType();
        if (!StringUtils.isNullOrEmpty(contentType)) {
            contentType = contentType.toLowerCase(Locale.ENGLISH);
            if ((contentType != null) && (contentType.contains("multipart/form-data"))
                    && (!contentType.startsWith("multipart/form-data"))) {
                response.getWriter().write("Reject!");
            } else {
                filterChain.doFilter(new Web114RequestWrapper((HttpServletRequest) request), response);
            }
        } else {
            filterChain.doFilter(new Web114RequestWrapper((HttpServletRequest) request), response);
        }
    }
 
    public void init(FilterConfig arg0) throws ServletException {}
}