django- login authentication

login_required decorator

In the application route login_required decorator user / urls.py

from django.conf.urls import url
from user.views import RegisterView, ActiveView, LoginView, UserInfoView, UserOrderView,  AddressView # 导入视图类
from django.contrib.auth.decorators import login_required  # login_required登录验证装饰器

urlpatterns = [
    # url(r'^register$', views.register, name='register'),
    # url(r'^register_handle$', views.register_handle, name='register_handle'),
    # url(r'^login$', views.login, name='login'),

    url(r'^register$', RegisterView.as_view(), name='register' ),   # User registration 
    URL (R & lt ' ^ Active /(.*)$ ' , ActiveView.as_view (), name = ' Active ' ),   # user activates 
    URL (R & lt ' ^ $ Login ' , LoginView.as_view () , name = ' Login ' ),   # user activates 
   url (r '^ $', login_required (UserInfoView.as_view ()), name = 'user'), # activate user authentication using the login 
    URL (R & lt ' ^ $ Order ' , UserOrderView.as_view (), name = ' Order ' ),   # user activates 
    URL (R & lt '^address$' , AddressView.as_view (), name = ' address ' ),   # user activates 

]

login_required () Complete the following things:

• If the user is not logged in, redirect to settings.LOGIN_URL , and pass the absolute path of the current access to the query string. For example: / Accounts / the Login / = the Next / polls / 3 /? .
• If the user has logged in, the normal execution view. Code view can safely assume that the user has signed.

settings.py have to login to configure routing Jump

# Login address 
LOGIN_URL = ' / the User / the Login '   # If you do not log in will jump here Login

If you are logged in, you have to jump to previously visited addresses

class the LoginView (View):
     '' ' Login ' '' 
    DEF GET (Self, Request):
         '' ' login page ' '' 
        # judge whether Remember username 
        IF  ' username '  in Request.Cookies: 
            username = Request. COOKIES.get ( ' username ' ) 
            the checked = ' the checked ' 
        the else : 
            username = '' 
            the checked = '' 
        # use templates 
        return the render (Request,'login.html', {'username':username, 'checked':checked})

    def post(self, request):
        '''登录校验'''
        # 接收数据
        username = request.POST.get('username')
        password = request.POST.get('pwd')
        # print(username)
        # print(password)

        # 校验数据
        if not all([username, password]):
            return render(request, 'the login.html ' , { ' ErrMsg ' : ' incomplete data ' }) 

        user = the authenticate (username = username, password = password)   # lookup database, any user information is not returned, then return None 
        Print (user.password)
         IF the user iS  not None:
             # username and password are correct 
            # verify activate 
            iF user.is_active:
                 # user has activated 
                # record user login status 
                # Print (user.is_active) 
                Flag = the Login (Request, the user)   # django.contrib.auth in the login method 
                #Go to Home 
                # the Response = redirect (Reverse ( 'Goods: index')) # HttpResponseRedirct 

                # receive the current access address 
               next_url = request.GET.get ( 'the Next', Reverse ( 'Goods: index'))   # GET ( ) the second parameter sets the default address 
                # Log in Log check if the jump to previously visited addresses 
               the Response = redirect (next_url)
                 # decide whether to remember the username 
                Remember = request.POST.get ( ' Remember ' )
                 Print ( Remember)
                 IF Remember == ' ON ' :
                     # remember the user name 
                    response.set_cookie ( ' username' , Username, the max_age. 7 = 3600 * 24 *)   # record Cookie 
                the else : 
                    response.delete_cookie ( ' username ' )
                 # Returns Response 
                return Response 

            the else :
                 return the render (Request, ' the login.html ' , { ' ErrMsg ' : ' User Not activated ' })
         the else :
             # username or password 
            return the render (Request, ' the login.html ' , { 'ErrMsg ' : ' username or password ' })