[sakhi383]

Description

Fixes #16410.

When importing an Nmap XML scan report where one or more hosts do not have a <hostnames> element (e.g. scanning an IP address directly with -n or where reverse DNS lookup is unavailable/skipped), dojo/tools/nmap/parser.py crashed with:

TypeError: 'NoneType' object is not iterable

This occurred because host.find("hostnames") was iterated over unconditionally, returning None when the element is absent.

Changes

1. Added a None check before iterating over host.find("hostnames") in dojo/tools/nmap/parser.py.
2. Added defensive fallback for IP address extraction supporting address[@addrtype='ipv6'] and generic address attributes without throwing AttributeError.
3. Added sample scan file unittests/scans/nmap/issue16410.xml and automated unit test test_parse_issue16410 in unittests/tools/test_nmap_parser.py.

Test results

• Executed TestNmapParser.test_parse_issue16410, verifying that Nmap scans without hostname elements import cleanly into findings with correct endpoints and port numbers.
• Verified test suite passes without regressions.

Checklist

• Make sure to rebase your PR against the very latest dev.
• Submit all PRs, features and bug fixes alike, against the dev branch.
• Give a meaningful name to your PR, as it may end up being used in the release notes.
• Add applicable tests to the unit tests.