package com.whyc.filter;

import com.whyc.pojo.User;
import org.apache.shiro.subject.Subject;
import org.apache.shiro.util.CollectionUtils;
import org.apache.shiro.web.filter.authz.AuthorizationFilter;

import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import java.util.Set;

/**
 * 自定义过滤规则,只需要包含某个角色,就授权
 */
public class RolesOrAuthorizationFilter  extends AuthorizationFilter {
    @Override
    protected boolean isAccessAllowed(ServletRequest request, ServletResponse response, Object mappedValue) throws Exception {
        Subject subject = getSubject(request, response);
        String[] rolesArray = (String[]) mappedValue;

        if (rolesArray == null || rolesArray.length == 0) {
            return true;
        }

        Set<String> roles = CollectionUtils.asSet(rolesArray);

        //判断为or
        User user = (User) subject.getPrincipals().getPrimaryPrincipal();
        for (String role :roles){
            if (subject.hasRole(role)){
                return true;
            }
        }
        return false;
    }
}