A .onion website finder and verifier. You must have tor configured correctly you can use the command below and you should get the same output.

1. Initial Seed URL Queue:

   • The queue_initial_urls function queues the initial URLs that the program will begin crawling from.
   • These URLs should ideally be directories or known sources of .onion URLs.

2. URL Extraction and Queueing:

   • extract_and_queue_onion_urls is responsible for extracting .onion URLs from the fetched page content and queuing them for further processing.

3. Thread Function:

   • thread_func constantly pulls URLs from the queue and processes them to find more .onion URLs. It keeps running until the queue is empty.

4. Multi-threading:

   • The program creates multiple threads (MAX_THREADS is set to 10) to process URLs concurrently. This significantly improves the speed of finding .onion URLs.

5. Recursive Crawling:

   • Each thread fetches a URL, extracts any .onion URLs from it, and queues them for further processing. This way, the program recursively discovers new .onion URLs.

1. Install Necessary Tools:

   Make sure to have the required tools installed:

   sudo apt-get update
   sudo apt-get install gcc libcurl4-openssl-dev tor

2. Start Tor:

   Ensure the Tor service is running:

   sudo service tor start

3. Create the Program File:

   Create a file named OFarm.c and paste the provided code:

   nano OFarm.c

   • Paste the code into this file.
   • Save the file with Ctrl + O and exit with Ctrl + X.

4. Compile the Program:

   Compile the program using gcc:

   gcc -o OFarm OFarm.c -lcurl -lpthread

5. Run the Program:

   Execute the compiled program:

   ./OFarm

6. Monitor the Output:

   The program will start by processing the seed URLs and will continue to find and queue new .onion URLs. The output will display any discovered .onion URLs along with their source.

• Adding Real Seed URLs: You should replace the placeholder URLs in the seed_urls[] array with actual .onion directory URLs or other sources of .onion links.

• Handling Dead URLs: You could enhance the error handling to manage dead URLs, possibly removing them from the queue or logging them for later analysis.

This guide provides a detailed implementation and step-by-step instructions to create a self-sufficient .onion finder that starts with its own seed URLs. By continuously crawling and discovering new .onion sites, the program can autonomously gather and verify .onion URLs in the background.