2018-10-11 12:25:11
现在写代码时候,不要好多代码放在一块!注重解耦!!!!!
把权限放到中间件里面,每次访问的时候都用到!
自己的网站弄完了,博客网站已经正式上线,就是有点丑! www.sizhanan.cn/index
越努力越幸运!永远不要高估自己!
先贴上笔记!
权限组件 1 项目与应用 2 什么是权限？ 一个包含正则表达式url就是一个权限 who what how ---------->True or Flase UserInfor name pwd permission=models.manytomany(Permission) name pwd egon 123 alex 456 A 111 B 222 C 333 D 444 Permission url=..... title=.... id url title 1 "/users/" "查看用户" 2 "/users/add/" "添加用户" 3 "/customer/add" "添加客户" UserInfor_permission id user_id permission_id id user_id permission_id 1 1 1 2 1 2 3 2 2 4 3 1 5 3 2 6 3 3 4 4 1 5 4 2 6 4 3 4 5 1 5 5 2 6 5 3 4 6 1 5 6 2 6 6 3 4 7 1 5 7 2 6 7 3 示例：登录人：egon 访问url:http://127.0.0.1:8000/users/ def users(request): user_id=request.session.get("user_id") obj=UserInfor.objects.filter(pk=user_id).first() obj.permission.all().valuelist("url") return HttpResponse("users.....") # 版本2： UserInfor name pwd roles name pwd egon 123 alex 456 alex 456 alex 456 alex 456 alex 456 alex 456 alex 456 alex 456 Role title=....... permissions=...... id title 1 销售员 UserInfor2Role id user_id role_id 1 1 1 Permission url=..... title=.... id url title 1 "/users/" "查看用户" 2 "/users/add/" "添加用户" 3 "/customer/add" "添加客户" Role2Permission id role_id permission_id 1 1 1 2 1 2 3 1 3 3 rbac（role-based access control） 关于rbac： (1) 创建表关系： class User(models.Model): name=models.CharField(max_length=32) pwd=models.CharField(max_length=32) roles=models.ManyToManyField(to="Role") def __str__(self): return self.name class Role(models.Model): title=models.CharField(max_length=32) permissions=models.ManyToManyField(to="Permission") def __str__(self): return self.title class Permission(models.Model): title=models.CharField(max_length=32) url=models.CharField(max_length=32) def __str__(self):return self.title (2) 基于admin录入数据 (3) 登录校验： if 登录成功: 查询当前登录用户的权限列表注册到session中 (4) 校验权限（中间件的应用） class ValidPermission(MiddlewareMixin): def process_request(self,request): # 当前访问路径 current_path = request.path_info # 检查是否属于白名单 valid_url_list=["/login/","/reg/","/admin/.*"] for valid_url in valid_url_list: ret=re.match(valid_url,current_path) if ret: return None # 校验是否登录 user_id=request.session.get("user_id") if not user_id: return redirect("/login/") # 校验权限 permission_list = request.session.get("permission_list",[]) # ['/users/', '/users/add', '/users/delete/(\d+)', 'users/edit/(\d+)'] flag = False for permission in permission_list: permission = "^%s$" % permission ret = re.match(permission, current_path) if ret: flag = True break if not flag: return HttpResponse("没有访问权限！") return None
rbac/service/perssions.py
# by luffycity.com def initial_session(user,request): permissions = user.roles.all().values("permissions__url").distinct() permission_list = [] for item in permissions: permission_list.append(item["permissions__url"]) print(permission_list) request.session["permission_list"] = permission_list
rbac/service/rbac.py 把这个文件在settings 中间件里面注册一下
MIDDLEWARE = [ ........... "rbac.service.rbac.ValidPermission" ]
# by luffycity.com import re from django.utils.deprecation import MiddlewareMixin from django.shortcuts import HttpResponse,redirect class ValidPermission(MiddlewareMixin): def process_request(self,request): # 当前访问路径 current_path = request.path_info # 检查是否属于白名单 valid_url_list=["/login/","/reg/","/admin/.*"] for valid_url in valid_url_list: ret=re.match(valid_url,current_path) if ret: return None # 校验是否登录 user_id=request.session.get("user_id") if not user_id: return redirect("/login/") # 校验权限 permission_list = request.session.get("permission_list",[]) # ['/users/', '/users/add', '/users/delete/(\d+)', 'users/edit/(\d+)'] flag = False for permission in permission_list: permission = "^%s$" % permission ret = re.match(permission, current_path) if ret: flag = True break if not flag: return HttpResponse("没有访问权限！") return None
app01/views.py
from django.shortcuts import render,HttpResponse # Create your views here. from rbac.models import * def users(request): user_list=User.objects.all() return render(request,"users.html",locals()) import re def add_user(request): return HttpResponse("add user.....") def roles(request): role_list=Role.objects.all() return render(request,"roles.html",locals()) from rbac.service.perssions import * def login(request): if request.method=="POST": user=request.POST.get("user") pwd=request.POST.get("pwd") user=User.objects.filter(name=user,pwd=pwd).first() if user: ############################### 在session中注册用户ID###################### request.session["user_id"]=user.pk ###############################在session注册权限列表############################## # 查询当前登录用户的所有角色 # ret=user.roles.all() # print(ret)# <QuerySet [<Role: 保洁>, <Role: 销售>]> # 查询当前登录用户的所有权限 initial_session(user,request) return HttpResponse("登录成功！") return render(request,"login.html")
2018-10-11 12:30:25
权限系统还是很简单的!