Feature Request: Make client hostname available in adguard_top_clients and adguard_processing_time_milliseconds_* metrics

[kondas]

Hi! Thanks for the effort put in this great piece of software.
It would be really nice to have client hostnames available in the adguard_top_clients and adguard_processing_time_milliseconds_* metrics , like on the web dashboard.

[freefd]

Hi team,

This feature could be easily implemented by resolving client's info within the /control/clients/find endpoint (https://github.com/AdguardTeam/AdGuardHome/blob/master/openapi/openapi.yaml#L935-L959)

Request example:

https://198.51.100.1/control/clients/find?ip0=198.51.100.42

Response example:

[
  {
    "198.51.100.42": {
      "disallowed": false,
      "disallowed_rule": "198.51.100.0/24",
      "whois_info": {
      },
      "safe_search": null,
      "blocked_services_schedule": null,
      "name": "Client-Host-Name",
      "blocked_services": null,
      "ids": [
        "198.51.100.42"
      ],
      "tags": null,
      "upstreams": null,
      "filtering_enabled": false,
      "parental_enabled": false,
      "safebrowsing_enabled": false,
      "safesearch_enabled": false,
      "use_global_blocked_services": false,
      "use_global_settings": false,
      "ignore_querylog": null,
      "ignore_statistics": null,
      "upstreams_cache_size": 0,
      "upstreams_cache_enabled": null
    }
  }
]

The name field value needs to be extracted and added as name label to the appropriate adguard_top_clients record, i.e.:

adguard_top_clients{client="198.51.100.42",name="Client-Host-Name",server="https://198.51.100.1"} 279

In the same way to proceed with adguard_processing_time_milliseconds_* metrics.