The Deep scan link on a device now opens a small dialog instead of firing
straight away. It is prefilled with the full 1-65535 range — that is still
the point of the feature — but a user who knows where a service lives can
narrow it and get an answer in seconds instead of minutes.
The dialog takes an nmap-style spec: a port, a range, or a comma list
(80,443,8000-9000). It shows the port count live, refuses to start on
something nmap could not use, and carries three presets (all / 1-1024 /
1-10000).
Backend:
- _parse_port_spec / _port_chunks generalize the slicing that used to be
full-range only. Ranges are merged before slicing, so an overlapping
spec is never scanned twice, and small ranges are packed into one nmap
call instead of one call each. _deep_port_chunks still yields the same
eight slices as before.
- run_device_scan takes ports=; it wins over full_ports.
- The retry-free flags (--max-retries 0 --min-rate 2000) now key on the
total port count rather than on full_ports. They pay for themselves over
thousands of ports on a lossy host; over a handful they only cost
accuracy.
- RescanDeviceRequest.ports validates the spec — 422 rather than handing
nmap a bad -p. Blank means the full sweep.
Frontend utils/portSpec.ts mirrors the backend parser so a typo is caught
before the request; the backend validates again because it is the one
calling nmap.
The existing rescan tests now go through the dialog: the click path
changed, so the start is two steps.
ha-relevant: yes
Pouzor
c6d6b525ea