gfast/middleWare/middleware.go

package middleWare

import (
	"fmt"
	"gfast/app/model/admin/auth_rule"
	"gfast/app/service/admin/auth_service"
	"gfast/app/service/admin/user_service"
	"gfast/app/service/casbin_adapter_service"
	"gfast/library/response"
	"gfast/library/service"
	"github.com/gogf/gf/frame/g"
	"github.com/gogf/gf/net/ghttp"
	"github.com/gogf/gf/text/gstr"
)

//跨域处理中间件
func CORS(r *ghttp.Request) {
	r.Response.CORSDefault()
	r.Middleware.Next()
}

//权限判断处理中间件
func Auth(r *ghttp.Request) {
	//获取登陆用户id
	adminId := user_service.GetLoginID(r)
	//获取无需验证权限的用户id
	for _, v := range service.NotCheckAuthAdminIds {
		if v == adminId {
			r.Middleware.Next()
			return
		}
	}
	url := r.Request.URL
	//获取地址对应的菜单id
	menuList, err := auth_service.GetMenuIsStatusList()
	if err != nil {
		g.Log().Error(err)
		response.FailJson(true, r, "请求数据失败")
	}
	var menu *auth_rule.Entity
	for _, m := range menuList {
		if gstr.Equal(m.Name, url.Path) {
			menu = m
			break
		}
	}
	if menu == nil {
		response.FailJson(true, r, "没有访问权限")
	}
	//若存在不需要验证的条件则跳过
	if gstr.Equal(menu.Condition, "nocheck") {
		r.Middleware.Next()
		return
	}
	menuId := menu.Id
	//菜单没存数据库不验证权限
	if menuId != 0 {
		//判断权限操作
		enforcer, err := casbin_adapter_service.GetEnforcer()
		if err != nil {
			g.Log().Error(err)
			response.FailJson(true, r, "获取权限失败")
		}
		groupPolicy := enforcer.GetFilteredGroupingPolicy(0,
			fmt.Sprintf("u_%d", adminId))
		if len(groupPolicy) == 0 {
			response.FailJson(true, r, "没有访问权限")
		}
		hasAccess := false
		for _, v := range groupPolicy {
			if enforcer.HasPolicy(v[1], fmt.Sprintf("r_%d", menuId), "All") {
				hasAccess = true
				break
			}
		}
		if !hasAccess {
			response.FailJson(true, r, "没有访问权限")
		}
	}
	r.Middleware.Next()
}