• Django 权限控制配置步骤


    1.models下面添加权限控制信息:

    class UserProfile(models.Model):
        user = models.OneToOneField(User)
        name = models.CharField(u"姓名",max_length=32)
        def __str__(self):
            return self.name
    
        class Meta:
            permissions = (('view_customer_list',u'可以查看用户信息'),
                           ('view_customer_info',u'可以查看客户详细信息'),
                           ('edit_own_customer_info',u'可以修改自己的客户信息'),
                           )

    2.配置别名关联的URL:

    url(r'^mod_customers/(d+)/$', views.mod_customers, name='customer_detail'),

    3.app下创建权限文件,根据配置的URL修改permissions.py:

    from django.core.urlresolvers import resolve
    from django.shortcuts import render
    perm_dic = {    #第一个参数是URL,第二个是请求方法,最后是参数
        'view_customer_list': ['customer_list','GET',[]],
        # 'view_customer_info': ['customer_detail','GET',[]],
        'edit_own_customer_info': ['customer_detail','POST',['test']],
        'view_staff_list': ['staff_list','GET',[]],
    }

    4.前端配置别名url的a标签:

    <td style="text-align:center"><a href="{% url 'customer_detail' student.id %}">{{ student.id }}</a></td>

    5.permission文件下添加装饰器:

    def check_permission(func): #将函数自身func传入
        def wrapper(*args,**kwargs): #如果有参数args,kwargs
            print("start check permission")
            if perm_check(*args,**kwargs) is not True:#没权限
                return render(args[0],'no_permission.html')
            perm_check(*args,**kwargs)  #在执行函数之前,检查是否有权限
            return func(*args,**kwargs) #执行被装饰的函数
        return wrapper

    6.将权限与限制关联,permission文件下:

    def perm_check(*args,**kwargs):
        request = args[0]
        url_resovle_obj = resolve(request.path_info)    #resolve将域名解析为URL的别名
        current_url_namespace = url_resovle_obj.url_name    #获取URL别名
        #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
            return True
    
        if matched_flag == True:
            #pass permission check
            perm_str = "crm.%s" %(matched_perm_key)
            if request.user.has_perm(perm_str):
                print("33[42;1m--------passed permission check----33[0m")
                return True
            else:
                print("33[41;1m ----- no permission ----33[0m")
                print(request.user,perm_str)
                return False
        else:
            print("33[41;1m ----- no matched permission  ----33[0m")

    7.在想要权限限制的方法前,添加@check_permission装饰器:

    @check_permission
    def staff(request):
        if request.method == 'POST':
        staff_obj = User.objects.all()
        return render(request,'staff.html',{'staff_obj':staff_obj})
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  • 原文地址:https://www.cnblogs.com/stefan-liu/p/5552711.html
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