Django Password Reset Tutorial
In this tutorial we'll add a password reset sequence to our Django application. This builds upon our previous work where we added Login & Logout pages and then a Signup page.
Complete source code can be found on Github if you get stuck along the way.
Django auth app
What we want is a password_reset
page where the user can enter their email address, and be sent a cryptographically secure email with a one-time link to a reset
page. Fortunately Django has us covered.
If you recall the complete set of views and URLs provided by the Django auth
app, there are already several for resetting a password.
accounts/login/ [name='login'] accounts/logout/ [name='logout'] accounts/password_change/ [name='password_change'] accounts/password_change/done/ [name='password_change_done'] accounts/password_reset/ [name='password_reset'] accounts/password_reset/done/ [name='password_reset_done'] accounts/reset/<uidb64>/<token>/ [name='password_reset_confirm'] accounts/reset/done/ [name='password_reset_complete']
The default templates however are quite ugly and we need to customize them. For example, here are the default password reset and password reset done pages:
But first we need to setup a way to deliver, or at least fake deliver, our email messages.
SMTP Server
In the real-world you would integrate with an email service like MailGun or SendGrid. For development purposes Django lets us store emails either in the console or as a file. We'll choose the latter and store all sent emails in a folder called sent_emails
in our project directory.
To configure this, update our django_project/settings.py
file by adding the following two lines at the bottom under our redirect
URLs.
# django_project/settings.py EMAIL_BACKEND = "django.core.mail.backends.filebased.EmailBackend" EMAIL_FILE_PATH = BASE_DIR / "sent_emails"
Now let's change the appearance of the password reset pages.
Password Reset Form
The default template for password reset is located at templates/registration/password_reset_form.html
. We can customize it by creating our own password_reset_form.html
file:
(.venv) $ touch templates/registration/password_reset_form.html
Then add the following code:
<!-- templates/registration/password_reset_form.html --> {% extends 'base.html' %} {% block title %}Forgot Your Password?{% endblock %} {% block content %} <h1>Forgot your password?</h1> <p>Enter your email address below, and we'll email instructions for setting a new one.</p> <form method="POST"> {% csrf_token %} {{ form.as_p }} <input type="submit" value="Send me instructions!"> </form> {% endblock %}
If you refresh the page at http://127.0.0.1:8000/accounts/password_reset/
you can see our new update:
Now go ahead and enter the email address that matches an actual user you've created. Then click on the button to submit it.
Upon successful submission, we're redirected to the Password reset done page which is also ugly. Let's change it. The default template is located at templates/registration/password_reset_done.html
. So as before, in your text editor create a new template file templates/registration/password_reset_done.html
and add the following code:
<!-- templates/registration/password_reset_done.html --> {% extends "base.html" %} {% block title %}Email Sent{% endblock %} {% block content %} <h1>Check your inbox.</h1> <p>We've emailed you instructions for setting your password. You should receive the email shortly!</p> {% endblock %}
If you refresh the password reset done page at http://127.0.0.1:8000/accounts/password_reset/done/
we can see our new page.
Password Reset Confirm
Remember how we configured our Django project to store emails in a local folder called sent_emails
? If you look at your project now that folder exists! The format for the txt
file will look something like this:
Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: Password reset on 127.0.0.1:8000 From: webmaster@localhost To: will@learndjango.com Date: Fri, 18 Mar 2022 19:20:44 -0000 Message-ID: <[email protected]0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.ip6.arpa> You're receiving this email because you requested a password reset for your user account at 127.0.0.1:8000. Please go to the following page and choose a new password: http://127.0.0.1:8000/accounts/reset/MQ/aa1v2k-8ab2c9597a4f6cc754e3dc5baaf3c77f/ Your username, in case you’ve forgotten: wsv Thanks for using our site! The 127.0.0.1:8000 team
This contains Django's default language which we can customize. But the important section for now is the URL included. In the email above, mine is http://127.0.0.1:8000/accounts/reset/MQ/aa1v2k-8ab2c9597a4f6cc754e3dc5baaf3c77f/
. Copy and paste yours into your browser and you'll be automatically routed to the Password reset confirmation page.
Ugly, no? Let's create a new template with our familiar steps. In your text editor create the new template called templates/registration/password_reset_confirm.html
and enter this new code:
<!-- templates/registration/password_reset_confirm.html --> {% extends "base.html" %} {% block title %}Enter new password{% endblock %} {% block content %} {% if validlink %} <h1>Set a new password!</h1> <form method="POST"> {% csrf_token %} {{ form.as_p }} <input type="submit" value="Change my password"> </form> {% else %} <p>The password reset link was invalid, possibly because it has already been used. Please request a new password reset.</p> {% endif %} {% endblock %}
Refresh the page at http://127.0.0.1:8000/accounts/reset/Mg/set-password/
and you'll see our new template.
Password Reset Done
Go ahead and create a new password in our form. Upon submission you'll be redirected to our final default page which is for Password reset complete:
To customize this page we'll create a new file called password_reset_complete.html
and enter the following code:
<!-- templates/registration/password_reset_complete.html --> {% extends 'base.html' %} {% block title %}Password reset complete{% endblock %} {% block content %} <h1>Password reset complete</h1> <p>Your new password has been set. You can log in now on the <a href="{% url 'login' %}">log in page</a>.</p> {% endblock %}
Now reset the page at http://127.0.0.1:8000/accounts/reset/done/
and view our
work.
Add to home page
Let's add the password reset link to the homepage now so that logged-in users will see it. We can use the built-in tag {% url 'password_reset' %}.
Here's the code.
<!-- templates/home.html --> {% extends 'base.html' %} {% block title %}Home{% endblock %} {% block content %} {% if user.is_authenticated %} Hi {{ user.username }}! <p><a href="{% url 'logout' %}">Log Out</a></p> <p><a href="{% url 'password_reset' %}">Reset Password</a></p> {% else %} <p>You are not logged in</p> <a href="{% url 'login' %}">Log In</a> {% endif %} {% endblock %}
Navigate to http://127.0.0.1:8000/
and log in using the "Log In" link. The updated homepage has both the "Log Out" and "Reset Password" links.
Conclusion
We've now implemented a robust user authentication flow for our web app with login, logout, signup, and password reset. Congrats!
What else might we want? Using a custom user model instead of the built-in User
model is a good idea. The Django docs note one is highly recommended. You could also add a "Password Change" feature, wire up emails to send, or even install the 3rd party django-allauth package to enable login via email only and other goodies.
I cover all of this--and more--in my book, Django for Beginners.