How to restrict access with Django login required decorator function? - Django Tutorial (2024)

FAQs

How to restrict user login Django? ›

Django admin allows access to users marked as is_staff=True . To disable a user from being able to access the admin, you should set is_staff=False . This holds true even if the user is a superuser.

The login_required decorator

login_required() does the following: If the user isn't logged in, redirect to settings.LOGIN_URL , passing the current absolute path in the query string. Example: /accounts/login/?next=/polls/3/ . If the user is logged in, execute the view normally.

To disable admin just remove url(r'^admin/', admin. site. urls), from your main urls.py . Another things to clean are 'django.

The login_required decorator is a decorator that can be used in Django that requires a view to have the user logged in. If the user is not logged in, the user will automatically be redirected to the login page (so that the person can log in). The login_required decorator, thus, forces a user to log in.

from django.contrib.auth.decorators import login_required @login_required(login_url='/accounts/login/') def my_view(request): ... Note that if you don't specify the login_url parameter, you'll need to ensure that the settings.LOGIN_URL and your login view are properly associated.

Using encryption software is the most effective way of limiting who can view or interact with private information without impacting productivity. Instead of locking down the area where data is stored, making it harder to access, this process protects the information itself.

Django's login_required function is used to secure views in your web applications by forcing the client to authenticate with a valid logged-in User.

By default, Django automatically gives add, change, and delete permissions to all models, which allow users with the permissions to perform the associated actions via the admin site. You can define your own permissions to models and grant them to specific users.

Decorator to wrap a function with a memoizing callable that saves up to the maxsize most recent calls. It can save time when an expensive or I/O bound function is periodically called with the same arguments.

How to protect Django admin? ›

Just need to apply django rest framework AllowAny permission to the specific method or class. You can achieve the same result by using an empty list or tuple for the permissions setting, but you may find it useful to specify this class because it makes the intention explicit. Save this answer.

The decorator @login_required is used to secure the bookapi/books/:bookid route in a the Flask application. It enforces the rule that the client has to either authenticate with a valid logged-in user or have an existing token.

The @property is a built-in decorator for the property() function in Python. It is used to give "special" functionality to certain methods to make them act as getters, setters, or deleters when we define properties in a class.

By using a decorator, you can add extra functionality without changing the original function, making your code cleaner and more organized.

Add Permissions to a Group

If you are using AbstractUser in Django, you must add AUTH_USER_MODEL = 'YourAppName. YourClassName' . This way, you are telling Django to use our custom user model instead of the default one. The code below should go in your admin.py file so that you can see your user model.

The Django authentication system handles both authentication and authorization. Briefly, authentication verifies a user is who they claim to be, and authorization determines what an authenticated user is allowed to do. Here the term authentication is used to refer to both tasks.

By adding a user to a role group, the user has access to all the roles in that group. If they are removed, access becomes restricted. Users may also be assigned to multiple groups in the event they need temporary access to certain data or programs and then removed once the project is complete.

How do I restrict users from login on multiple devices? ›

Locking the user account

To lock a user account use the command usermod -L or passwd -l. Both the commands adds an exclamation mark (“!”) in the second field of the file /etc/shadow.It has to be executed by either boby/privilaged user. It will deny any access which would be done directly using su or with ssh.

On the Database Tools tab, in the Administer group, click Users and Permissions. Click one of the following commands: User and Group Permissions Use this to grant or revoke user or group permissions, or to change the owner of database objects.

For example, a user can access a normal address, but cannot see a secured address. Furthermore, the restrictions indicate if the user may read, create, update and / or delete data.

Permission Set Control

Permissions are additive which means we can't remove a user's existing permissions by assigning a permission set we can only add permissions. To limit access for a user or group of users, ensure that their base profile as well as any of their permission set limits this type of access.

To add a decorator function to every instance of a class-based view, you need to decorate the class definition itself. To do this, you pass the name of the method to be decorated as the keyword argument name: from . decorators import authentication_not_required from django.

Add @login_required decorator to the view that loads the dashboard page. If a user without authentication tries to access dashboard page, he will be redirected to login page and on successfull login redirected back to dashboard page.

To login to the site, open the /admin URL (e.g. http://127.0.0.1:8000/admin ) and enter your new superuser userid and password credentials (you'll be redirected to the login page, and then back to the /admin URL after you've entered your details).

What are the two types of decorators in Python? ›

In fact, there are two types of decorators in Python — class decorators and function decorators — but I will focus on function decorators here.

“Wrapper” is the alternative nickname for the Decorator pattern that clearly expresses the main idea of the pattern. A wrapper is an object that can be linked with some target object. The wrapper contains the same set of methods as the target and delegates to it all requests it receives.

Function wrappers are useful tools for modifying the behavior of functions. In Python, they're called decorators. Decorators allow us to extend the behavior of a function or a class without changing the original implementation of the wrapped function.

For storing passwords, Django will use the first hasher in PASSWORD_HASHERS . To store new passwords with a different algorithm, put your preferred algorithm first in PASSWORD_HASHERS . For verifying passwords, Django will find the hasher in the list that matches the algorithm name in the stored password.

To override these templates, you will need to have an admin folder in your templates folder. If you do not have a templates folder, you can create it in the main project folder. To do so, you will have to change the project's settings.py . Find the TEMPLATES section and modify accordingly.

Use a .

gitignore file tells git what files and directories to ignore. Git will automatically ignore any file or directory put in this file to protect sensitive information. Create . gitignore files at the root of your GitHub repository before you git-clone it to VSCode.

JSON Web Token, Auth0, Keycloak, Amazon Cognito, and OAuth2 are the most popular alternatives and competitors to Django REST framework JWT.

Django comes with a user authentication system. It handles user accounts, groups, permissions and cookie-based user sessions. This section of the documentation explains how the default implementation works out of the box, as well as how to extend and customize it to suit your project's needs.

Use form = GroupForm(use_required_attribute=False) when you initialize your form in your views.py .

To write your login function, add an if/else statement that uses the Django function authenticate() . This function is used to verify user credentials (username and password) and return the correct User object stored in the backend.

How to create multiple user login in Django? ›

Decorators are a way to restrict access to views based on the request method or control caching behaviour. This is particularly useful when you want to separate logged-in users from unauthenticated users or create an admin page that only privileged users can access.

How does the @property decorator work? The @property decorator is a built-in decorator in Python for the property() function. This function returns a special descriptor object which allows direct access to getter, setter, and deleter methods.

Python's property() is the Pythonic way to avoid formal getter and setter methods in your code. This function allows you to turn class attributes into properties or managed attributes. Since property() is a built-in function, you can use it without importing anything.

The @property Decorator

In Python, property() is a built-in function that creates and returns a property object. The syntax of this function is: property(fget=None, fset=None, fdel=None, doc=None) Here, fget is function to get value of the attribute. fset is function to set value of the attribute.

A decorator in Python is a function that takes another function as its argument, and returns yet another function . Decorators can be extremely useful as they allow the extension of an existing function, without any modification to the original function source code.

You'll use a decorator when you need to change the behavior of a function without modifying the function itself. A few good examples are when you want to add logging, test performance, perform caching, verify permissions, and so on. You can also use one when you need to run the same code on multiple functions.

Conceptually, decorators are supposed to alter the functionality of a single function they decorate; a function that sequences two other functions on an equal footing may not make much sense as a decorator.

Django admin allows access to users marked as is_staff=True . To disable a user from being able to access the admin, you should set is_staff=False . This holds true even if the user is a superuser.

How do I give permission to a specific user in Django? ›

With Django, you can create groups to class users and assign permissions to each group so when creating users, you can just assign the user to a group and, in turn, the user has all the permissions from that group. To create a group, you need the Group model from django. contrib. auth.

Simply put, authentication is the process of verifying who someone is, whereas authorization is the process of verifying what specific applications, files, and data a user has access to.

The get_user method takes a user_id – which could be a username, database ID or whatever, but has to be the primary key of your user object – and returns a user object. The authenticate method takes credentials as keyword arguments.

Programmatically, you can create / save a new User without a password argument, and it will not raise any exceptions. In fact, you can even create a user without any arguments. This is explained here. The trick is to use create() instead of create_user(), as discussed here.

auth you can't make the username field optional. You always have to put a value in the database. In order to bypass that, I suggest you generate a value in create_user() for username. You could either use a random value, or create a username from email.

In order to make a field optional, we have to say so explicitly. If we want to make the pub_time field optional, we add blank=True to the model, which tells Django's field validation that pub_time can be empty.

How to make an admin login with Django? ›

The Django authentication system handles both authentication and authorization. Briefly, authentication verifies a user is who they claim to be, and authorization determines what an authenticated user is allowed to do. Here the term authentication is used to refer to both tasks.