Book Image

Mastering Flask

By : Jack Stouffer
Book Image

Mastering Flask

By: Jack Stouffer

Overview of this book

Starting from a simple Flask app, this book will walk through advanced topics while providing practical examples of the lessons learned. After building a simple Flask app, a proper app structure is demonstrated by transforming the app to use a Model-View-Controller (MVC) architecture. With a scalable structure in hand, the next chapters use Flask extensions to provide extra functionality to the app, including user login and registration, NoSQL querying, a REST API, an admin interface, and more. Next, you’ll discover how to use unit testing to take the guesswork away from making sure the code is performing as it should. The book closes with a discussion of the different platforms that are available to deploy a Flask app on, the pros and cons of each one, and how to deploy on each one.
Table of Contents (20 chapters)
Mastering Flask
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Setting up


Before we jump right into making a user authentication system, there is a lot of setup code. To run any type of authentication, our app will need the following elements common to all:

  • First, the user models will need proper password hashing

  • Second, a login form and a registration form will be needed to validate user input

  • Third, a login view and a registration view with templates for each will be needed

  • Fourth, various social logins need to be set up in order to tie them into the login system when it is implemented

Updating the models

Until now, our users had their passwords stored as a plain text in the database. This is a major security flaw. If any malicious user were to gain access to the data in the database, they could log in to any account. The fallout of such a breach would be greater than our site. Large amounts of people on the Internet use a common password for many sites.

If an attacker had access to an e-mail and password combination, it is very likely that this information...