DetectGeoWithServer was doing GeoIP-first (DNS lookup per node) then falling back to name regex. For a 148-node collection with rename enabled, this meant 148 serial DNS queries in the rename pass alone (28s on slow DNS).
Reverse the priority: try name-based regex first (instant, no I/O), only fall back to GeoIP+DNS when the node name has no recognizable country keywords. Most proxy names already contain country/city info.
Also add in-memory DNS cache in geoip.LookupHost so repeated lookups for the same hostname don't re-resolve.
Collection preview with rename: 30s -> 3s.
- Add MaxMind GeoLite2-City mmdb auto-download and IP-based geo lookup
(covers all 249 countries globally, replacing limited 8-country regex)
- Add RenameOptions with 5 toggleable fields (flag/alias/country/city/index)
stored as rename_options_json on collections
- Collection rename pipeline uses DetectGeoWithServer(name, server) which
tries GeoIP lookup first, falls back to name-based regex matching
- Chinese country/city names + emoji flag prefix
- Country-city dedup: skip city when it equals country (e.g. 香港/香港)
- URI fragment encoding: url.QueryEscape -> url.PathEscape (%20 not +)
- Egress cache key excludes name field so renamed nodes still match cache
- Frontend: 5 toggle buttons in collection edit form, default all on
- Migrations: 0004 (source alias + collection rename_enabled),
0005 (collection rename_options_json)
rogee