Book Image

Polished Ruby Programming

By : Jeremy Evans
5 (1)
Book Image

Polished Ruby Programming

5 (1)
By: Jeremy Evans

Overview of this book

Anyone striving to become an expert Ruby programmer needs to be able to write maintainable applications. Polished Ruby Programming will help you get better at designing scalable and robust Ruby programs, so that no matter how big the codebase grows, maintaining it will be a breeze. This book takes you on a journey through implementation approaches for many common programming situations, the trade-offs inherent in each approach, and why you may choose to use different approaches in different situations. You'll start by refreshing Ruby fundamentals, such as correctly using core classes, class and method design, variable usage, error handling, and code formatting. Then you'll move on to higher-level programming principles, such as library design, use of metaprogramming and domain-specific languages, and refactoring. Finally, you'll learn principles specific to web application development, such as how to choose a database and web framework, and how to use advanced security features. By the end of this Ruby programming book, you’ll be a well rounded web developer with a deep understanding of Ruby. While most code examples and principles discussed in the book apply to all Ruby versions, some examples and principles are specific to Ruby 3.0, the latest release at the time of publication.
Table of Contents (23 chapters)
Section 1: Fundamental Ruby Programming Principles
Section 2: Ruby Library Programming Principles
Section 3: Ruby Web Programming Principles

Chapter 17: Robust Web Application Security

Security is one of the most important considerations when developing a web application. In this chapter, you'll learn about techniques for avoiding common security issues in web applications. Then, you'll learn how to leverage the advanced security techniques provided by the operating system and database to increase the difficulty of attacks, minimize the attack surface, and mitigate damage in the case of a successful attack.

In this chapter, we will cover the following topics:

  • Understanding that most security issues in Ruby web applications are high level
  • Never trust input
  • Performing access control at the highest level possible
  • Avoiding injection
  • Approaching high-security environments

By the end of this chapter, you'll have a greater understanding of possible security issues in Ruby web applications, as well as how to use both common and advanced techniques to avoid or mitigate them.