Extract web service URLs from Nessus scan files (.nessus) and output them to a plain text file.

• Python 3.10+
• No external dependencies

# Parse all .nessus files in the current directory
python3 nessus_to_urls.py

# Parse specific files
python3 nessus_to_urls.py scan1.nessus scan2.nessus

# Custom output file (default: urls.txt)
python3 nessus_to_urls.py -o webservices.txt scan.nessus

The script produces a sorted, deduplicated list of URLs — one per line:

http://10.0.0.1:8080
https://10.0.0.2
https://example.com
https://example.com:8443

1. Parses the .nessus XML and iterates over each host and report item
2. Identifies web services by matching service names (www, http, https, http-alt, https-alt, http-proxy) and plugin names containing HTTP/web keywords
3. Determines http vs https by checking for SSL/TLS-related Nessus plugins on the same port
4. Uses the host FQDN when available, otherwise falls back to the IP address
5. Omits default ports (80 for HTTP, 443 for HTTPS); includes non-standard ports in the URL