package com.cloud.user.filter;

import com.cloud.user.utils.EnumStr;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;


import javax.servlet.*;
import javax.servlet.annotation.WebFilter;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

@Slf4j
@Component
@WebFilter(urlPatterns = "/httpImage", filterName = "httpImageFilter")
public class HttpImageFilter implements Filter {

    @Autowired
    private EnumStr enumStr;
    @Override
    public void init(FilterConfig filterConfig) throws ServletException {

    }

    @Override
    public void doFilter(ServletRequest request, ServletResponse response, FilterChain fc) throws IOException, ServletException {

        HttpServletRequest req = (HttpServletRequest) request;
        HttpServletResponse resp = (HttpServletResponse) response;
        String url = req.getRequestURI();
        if (url.startsWith("/httpImage")){
            String group = url.substring(11);
            if (group.contains("http")){
                resp.sendRedirect(group);
                resp.setHeader("Access-Control-Allow-Origin", "*");
                return;
            }
            resp.sendRedirect(enumStr.getHttpImgUrl()+group);
            resp.setHeader("Access-Control-Allow-Origin", "*");
            return;
        }else {
            fc.doFilter(request,response);
        }
    }

    @Override
    public void destroy() {

    }
}