/**

  * @author WGR

  * @create 2019/10/20 -- 21:19

  */

 /**

  * 登录过滤器

  */

 @Component

 public class LoginFilter  extends ZuulFilter {

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     /**

      * 过滤器类型，前置过滤器

      * @return

      */

     @Override

     public String filterType() {

         return "pre";

     }

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     /**

      * 过滤器顺序，越小越先执行

      * @return

      */

     @Override

     public int filterOrder() {

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         return 4;

     }

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     /**

      * 过滤器是否生效

      * @return

      */

     @Override

     public boolean shouldFilter() {

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         RequestContext requestContext = RequestContext.getCurrentContext();

         HttpServletRequest  request = requestContext.getRequest();

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         //System.out.println(request.getRequestURI()); ///apigateway/product/api/v1/product/list

         //System.out.println(request.getRequestURL()); //http://localhost:9000/apigateway/product/api/v1/product/list

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         //ACL

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         if ("/apigateway/api/v1/order/save".equalsIgnoreCase(request.getRequestURI())){

             return true;

         }else if ("/apigateway/order/api/v1/order/list".equalsIgnoreCase(request.getRequestURI())){

             return true;

         }else if ("/apigateway/order/api/v1/order/find".equalsIgnoreCase(request.getRequestURI())){

             return true;

         }

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         return false;

     }

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     /**

      * 业务逻辑

      * @return

      * @throws ZuulException

      */

     @Override

     public Object run() throws ZuulException {

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         //JWT

         RequestContext requestContext =  RequestContext.getCurrentContext();

         HttpServletRequest request = requestContext.getRequest();

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         //token对象

         String token = request.getHeader("token");

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         if(StringUtils.isBlank((token))){

             token  = request.getParameter("token");

         }

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         //登录校验逻辑  根据公司情况自定义 JWT

         if (StringUtils.isBlank(token)) {

             requestContext.setSendZuulResponse(false);

             requestContext.setResponseStatusCode(HttpStatus.UNAUTHORIZED.value());

         }

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         return null;

     }

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 }