spYder - The Web Crawler

spYder is a robust web crawling and scraping tool designed to facilitate the collection and analysis of web data. It's built with flexibility in mind, offering a multitude of settings to control the scope and depth of the crawl.

Features

Configurable Constraints: Set maximum URLs and domains to control the breadth of the crawl.
Selective Content Saving: Choose to save links, media URLs (images, videos), CSS, and JS files.
Dead URL Tracking: Option to track URLs that return 4xx/5xx status codes.
Ping Settings: Control whether to ping internal and external URLs.
Crawl Settings: Decide whether to crawl internal and external content.
Queue Management: Use a thread-safe queue to manage URLs to be crawled, with customizable size and timeout settings.
Data Visualization: Generate a graph map of the crawled websites (requires additional plotting setup).
Extensibility: Use custom headers for requests.
Blacklisting: Prevent crawling of URLs with certain words or from specific domains.
Log Management: Maintain an execution log for monitoring and debugging purposes.

Installation

Before installing spYder, ensure you have Python 3.x installed on your system. Then, install the required packages:

pip install requests tldextract networkx matplotlib bs4

Usage

Instantiate the SpYder class with your desired configuration:

from spYder import SpYder

spider = SpYder(
    max_urls=100,
    max_domains=10,
    save_media_urls=True,
    save_css_urls=True,
    save_js_urls=True,
    save_links=True,
    save_dead_urls=True,
    ping_internal=True,
    ping_external=False,
    internal_crawl=True,
    external_crawl=False,
    plot_it=True,
    blacklisted_domains=['example.com'],
    blacklisted_words=['login', 'register']
)

To start a crawl, call the multicrawl method with the starting URL and the number of threads:

result = spider.multicrawl('http://example.com', threads_num=5)

Output

The crawl results are stored in various sets and can be accessed directly:

unique_domains: Set of unique domains visited.
visited_urls: Set of URLs visited.
unknown_urls: Set of URLs that returned status 429.
dead_urls: Set of URLs that returned 4xx/5xx statuses.
dead_domains: Set of domains where all URLs were dead.
all_urls: Dictionary with domains as keys and sets of URLs as values.
css_urls: Set of CSS file URLs.
js_urls: Set of JavaScript file URLs.
media_urls: Set of media file URLs (images, videos).
links: Set of hyperlink URLs.

Graph Map

If plot_it is set to True, a graph map will be generated showing the connections between different domains.

Cleaning Up

Use the clear method to remove temporary files created during the crawl:

spider.clear()

Contributing

Contributions to spYder are welcome! Please fork the repository and submit a pull request with your changes.

srpiroliro/spYder