Django权限控制初探-创新互联
通过django默认的权限管理来管理权限即可，我们在基础上进行一些第三方扩展
下面给出一个权限控制的示例，这里url路径转发的时候需要添加默认的 别名，我们需要修改的也是这些别名
models.py
class UserProfile(models.Model):
user = models.OneToOneField(User)
name = models.CharField(max_length=64)
school = models.ForeignKey('School')
def __unicode__(self):
return self.name
class Meta:
permissions =(('view_customer_list', u"可以查看客户列表"),
('view_customer_info',u"可以查看客户详情"),
('edit_own_customer_info',u"可以修改自己的客户信息"),
('view_teacher_list',u"可以查看老师列表"),
('view_school_list',u"可以查看学校列表"),
)permissions.py 这边采取的是装饰的写法
# -*- coding:utf-8 -*-
# Author:Alex Li
from django.core.urlresolvers import resolve
from django.shortcuts import render
perm_dic = {
'view_customer_list': ['customer_list','GET',[]],
'view_customer_info': ['customer_detail','GET',[]],
''''''
'''后端参数'''
'edit_own_customer_info': ['customer_detail','POST',[]],
}
def perm_check(*args,**kwargs):
request = args[0]
url_resovle_obj = resolve(request.path_info)
current_url_namespace = url_resovle_obj.url_name
#app_name = url_resovle_obj.app_name #use this name later
print("url namespace:",current_url_namespace)
matched_flag = False # find matched perm item
matched_perm_key = None
if current_url_namespace is not None:#if didn't set the url namespace, permission doesn't work
print("find perm...")
for perm_key in perm_dic:
perm_val = perm_dic[perm_key]
if len(perm_val) == 3:#otherwise invalid perm data format
url_namespace,request_method,request_args = perm_val
print(url_namespace,current_url_namespace)
if url_namespace == current_url_namespace: #matched the url
if request.method == request_method:#matched request method
if not request_args:#if empty , pass
matched_flag = True
matched_perm_key = perm_key
print('mtched...')
break #no need looking for other perms
else:
for request_arg in request_args: #might has many args
request_method_func = getattr(request,request_method) #get or post mostly
#print("----->>>",request_method_func.get(request_arg))
if request_method_func.get(request_arg) is not None:
matched_flag = True # the arg in set in perm item must be provided in request data
else:
matched_flag = False
print("request arg [%s] not matched" % request_arg)
break #no need go further
if matched_flag == True: # means passed permission check ,no need check others
print("--passed permission check--")
matched_perm_key = perm_key
break
else:#permission doesn't work
'''这边如果 没有定义url别名的话，那么为了避免影响全局，就让它默认就有权限'''
return True
if matched_flag == True:
#pass permission check
perm_str = "crm.%s" %(matched_perm_key) #crm.view_customer_list
if request.user.has_perm(perm_str):
print("\033[42;1m--------passed permission check----\033[0m")
return True
else:
print("\033[41;1m ----- no permission ----\033[0m")
print(request.user,perm_str)
return False
else:
print("\033[41;1m ----- no matched permission ----\033[0m")
'''所有的为空的情况，也没有放过'''
return False
def check_permission(func):
def wrapper(*args,**kwargs):
print('---start check perm---')
if perm_check(*args,**kwargs) is not True:#no permisssion
return render(args[0],'crm/403.html')
return func(*args,**kwargs)
return wrapperviews.py
'''这块也在前端做了下权限划分的显示，成功了'''
@login_required
@check_permission
def teachers(req):
teachers_list=models.UserProfile.objects.all()
return render(req,'crm/teachers.html',{'teachers_list':teachers_list})◆ 权限验证(1)
views 中验证
if not request.user.has_perm('crm.view_teachers_list')
return HttpResponse('Forbidden')
◆ 权限验证(2)
Template 中的权限检查
{% if perms.crm.view_teachers_list %}
有权限
{% endif %}前端权限判断截图如下：
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