Book Image

Python Penetration Testing Cookbook

By : Rejah Rehim
Book Image

Python Penetration Testing Cookbook

By: Rejah Rehim

Overview of this book

Penetration testing is the use of tools and code to attack a system in order to assess its vulnerabilities to external threats. Python allows pen testers to create their own tools. Since Python is a highly valued pen-testing language, there are many native libraries and Python bindings available specifically for pen-testing tasks. Python Penetration Testing Cookbook begins by teaching you how to extract information from web pages. You will learn how to build an intrusion detection system using network sniffing techniques. Next, you will find out how to scan your networks to ensure performance and quality, and how to carry out wireless pen testing on your network to avoid cyber attacks. After that, we’ll discuss the different kinds of network attack. Next, you’ll get to grips with designing your own torrent detection program. We’ll take you through common vulnerability scenarios and then cover buffer overflow exploitation so you can detect insecure coding. Finally, you’ll master PE code injection methods to safeguard your network.
Table of Contents (15 chapters)

Link extractor with Scrapy

As their name indicates, link extractors are the objects that are used to extract links from the Scrapy response object. Scrapy has built-in link extractors, such as scrapy.linkextractors.

How to do it...

Let's build a simple link extractor with Scrapy:

  1. As we did for the previous recipe, we have to create another spider for getting all the links.

In the new spider file, import the required modules:

import scrapy 
from scrapy.linkextractor import LinkExtractor 
from scrapy.spiders import Rule, CrawlSpider  
  1. Create a new spider class and initialize the variables:
class HomeSpider2(CrawlSpider): 
    name = 'home2' 
    allowed_domains = ['books.toscrape.com'] 
    start_urls...