权限校验

cool-admin for java采用spring-securityopen in new window与 jwt 作为框架安全与权限校验。

原理

1、系统启动的时候，系统会查询并向spring-securityopen in new window加载所有设置的权限；

modules/base/security/MySecurityMetadataSource.java

package com.cooljs.modules.base.security;


import com.cooljs.modules.base.service.sys.BaseSysPermsService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.security.access.ConfigAttribute;
import org.springframework.security.access.SecurityConfig;
import org.springframework.security.web.FilterInvocation;
import org.springframework.security.web.access.intercept.FilterInvocationSecurityMetadataSource;
import org.springframework.stereotype.Component;

import javax.annotation.Resource;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.Map;

/**
 * 权限资源管理器
 * 为权限决断器提供支持
 */
@Slf4j
@Component
public class MySecurityMetadataSource implements FilterInvocationSecurityMetadataSource {
    @Resource
    private BaseSysPermsService baseSysPermsService;

    private Map<String, Collection<ConfigAttribute>> map = null;

    /**
     * 加载权限表中所有操作请求权限
     */
    public void loadResourceDefine() {
        map = new HashMap<>();
        Collection<ConfigAttribute> configAttributes;
        ConfigAttribute cfg;
        String[] perms = baseSysPermsService.getAllPerms();
        // 获取启用的权限操作请求
        for (String perm : perms) {
            configAttributes = new ArrayList<>();
            cfg = new SecurityConfig(perm);
            //作为MyAccessDecisionManager类的decide的第三个参数
            configAttributes.add(cfg);
            //用权限的path作为map的key，用ConfigAttribute的集合作为value
            map.put(perm.replaceAll(":", "/"), configAttributes);
        }
    }

    /**
     * 判定用户请求的url是否在权限表中
     * 如果在权限表中，则返回给decide方法，用来判定用户是否有此权限
     * 如果不在权限表中则放行
     *
     * @param o
     * @return
     * @throws IllegalArgumentException
     */
    @Override
    public Collection<ConfigAttribute> getAttributes(Object o) throws IllegalArgumentException {
        if (map == null) {
            loadResourceDefine();
        }
        //Object中包含用户请求request
        String url = ((FilterInvocation) o).getRequestUrl();
        return map.get(url.replace("/admin/", "").split("[?]")[0]);

    }

    @Override
    public Collection<ConfigAttribute> getAllConfigAttributes() {
        return new ArrayList<>();
    }

    @Override
    public boolean supports(Class<?> aClass) {
        return true;
    }
}

2、用户登录，查询该用户所具有的权限并缓存；

modules/base/security/JwtUserDetailsServiceImpl.java

package com.cooljs.modules.base.security;


import cn.hutool.core.util.ObjectUtil;
import com.baomidou.mybatisplus.core.toolkit.Wrappers;
import com.cooljs.core.cache.CoolCache;
import com.cooljs.core.security.jwt.JwtUser;
import com.cooljs.modules.base.entity.sys.BaseSysUserEntity;
import com.cooljs.modules.base.service.sys.BaseSysPermsService;
import com.cooljs.modules.base.service.sys.BaseSysUserService;
import org.springframework.security.core.GrantedAuthority;
import org.springframework.security.core.authority.SimpleGrantedAuthority;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.core.userdetails.UsernameNotFoundException;
import org.springframework.stereotype.Component;

import javax.annotation.Resource;
import java.util.ArrayList;
import java.util.List;

/**
 * 获得用户信息
 */
@Component
public class JwtUserDetailsServiceImpl implements UserDetailsService {
    @Resource
    private BaseSysUserService baseSysUserService;
    @Resource
    private BaseSysPermsService baseSysPermsService;
    @Resource
    private CoolCache coolCache;

    @Override
    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
        BaseSysUserEntity sysUserEntity = baseSysUserService.getOne(Wrappers.<BaseSysUserEntity>lambdaQuery()
                .eq(BaseSysUserEntity::getUsername, username)
                .eq(BaseSysUserEntity::getStatus, 1));
        if (ObjectUtil.isEmpty(sysUserEntity)) {
            throw new UsernameNotFoundException("用户名不存在");
        }
        List<GrantedAuthority> authority = new ArrayList<>();
        String[] perms = baseSysPermsService.getPerms(sysUserEntity.getId());
        for (String perm : perms) {
            authority.add(new SimpleGrantedAuthority(perm));
        }
        Long[] departmentIds = baseSysPermsService.getDepartmentIdsByRoleIds(sysUserEntity.getId());
        JwtUser jwtUser = new JwtUser(sysUserEntity.getUsername(), sysUserEntity.getPassword(), authority, sysUserEntity.getStatus() == 1);
        Long[] roleIds = baseSysPermsService.getRoles(sysUserEntity);
        coolCache.set("admin:userDetails:" + jwtUser.getUsername(), jwtUser);
        coolCache.set("admin:passwordVersion:" + sysUserEntity.getId(), sysUserEntity.getPasswordV());
        coolCache.set("admin:userInfo:" + sysUserEntity.getId(), sysUserEntity);
        coolCache.set("admin:department:" + sysUserEntity.getId(), departmentIds);
        coolCache.set("admin:roleIds:" + sysUserEntity.getId(), roleIds);
        return jwtUser;
    }
}

3、每次调用接口的时候spring-securityopen in new window权限拦截器校验当前用户权限；

core/security/MyFilterSecurityInterceptor.java

package com.cooljs.core.security;

import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.access.SecurityMetadataSource;
import org.springframework.security.access.intercept.AbstractSecurityInterceptor;
import org.springframework.security.access.intercept.InterceptorStatusToken;
import org.springframework.security.web.FilterInvocation;
import org.springframework.security.web.access.intercept.FilterInvocationSecurityMetadataSource;
import org.springframework.stereotype.Component;

import javax.annotation.Resource;
import javax.servlet.*;
import java.io.IOException;

/**
 * 权限管理拦截器
 * 监控用户行为
 */
@Slf4j
@Component
public class MyFilterSecurityInterceptor extends AbstractSecurityInterceptor implements Filter {
    @Resource
    private FilterInvocationSecurityMetadataSource securityMetadataSource;


    @Autowired
    public void setMyAccessDecisionManager(MyAccessDecisionManager myAccessDecisionManager) {
        super.setAccessDecisionManager(myAccessDecisionManager);
    }

    @Override
    public void init(FilterConfig filterConfig) throws ServletException {
    }

    @Override
    public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
        FilterInvocation fi = new FilterInvocation(request, response, chain);
        invoke(fi);
    }

    public void invoke(FilterInvocation fi) throws IOException, ServletException {
        InterceptorStatusToken token = super.beforeInvocation(fi);
        try {
            fi.getChain().doFilter(fi.getRequest(), fi.getResponse());
        } finally {
            super.afterInvocation(token, null);
        }
    }

    @Override
    public void destroy() {
    }

    @Override
    public Class<?> getSecureObjectClass() {
        return FilterInvocation.class;
    }

    @Override
    public SecurityMetadataSource obtainSecurityMetadataSource() {
        return this.securityMetadataSource;
    }
}

当前用户

获得用户名

 @Resource
 private CoolSecurityUtil coolSecurityUtil;

 String username = coolSecurityUtil.username();

获得用户信息

请求过程中会解析 token，并将用户信息存在整个请求过程中的requestParams

 @Resource
 private CoolSecurityUtil coolSecurityUtil;

 JSONObject userInfo = coolSecurityUtil.userInfo(requestParams);

userInfo

字段	类型	说明
roleIds	Long[]	角色数组
username	String	用户名
userId	Long	用户ID
passwordVersion	Integer	密码版本号

# 权限校验

# 原理

# 当前用户

权限校验

原理

当前用户