Django Authentication and Authorization

Authentication and Authorization in Django?

Implementing user authentication and authorization is crucial for securing your Django web applications.

As for Django, it provides an in-built authentication system, thereby dealing with the issue of user account and permission management much smoothly.

Implementing user authentication:

Django provides built-in views and forms for user authentication, making it easy to set up login and logout functionality.

                                
# urls.py

from django.urls import path
from django.contrib.auth import views as auth_views
from . import views

urlpatterns = [
    path('login/', auth_views.LoginView.as_view(), name='login'),
    path('logout/', auth_views.LogoutView.as_view(), name='logout'),
]

Using built-in authentication views and forms:

Django's built-in authentication views handle the login and logout process for you.

You can use them directly in your URL configurations.

                                
<!-- login.html -->

<form method="post">
    {% csrf_token %}
    {{ form.as_p }}
    <button type="submit">Login</button>
</form>

logout.html

                                
<!-- logout.html -->

<form method="post">
    {% csrf_token %}
    <button type="submit">Logout</button>
</form>

Customizing authentication and authorization behavior:

You have the ability of configuring web-security in Django using classes and self-written middleware for authentication and authorization behavior.

Customizing authentication behavior

                                
# Customizing authentication behavior
from django.contrib.auth.decorators import login_required

@login_required
def my_view(request):
    # Your view logic here
    pass

Customizing authorization behavior

                                
# Customizing authorization behavior
from django.contrib.auth.mixins import PermissionRequiredMixin
from django.views.generic import UpdateView
from .models import MyModel

class MyModelUpdateView(PermissionRequiredMixin, UpdateView):
    model = MyModel
    fields = ['field1', 'field2']
    permission_required = 'myapp.change_mymodel'
    # Additional view logic here