Additionally block ISP/ASN

Nobody has claimed this yet.

Hello,
I don't really understand, how works your filter for block tracking with ISP or ASN name.

You write:

> Additionally, some Cloud providers like Alibaba Cloud may be detected using the geolocation database (requires eg DB-IP City DB).

It is possible in matomo to activate a Geolocation database instead using the browser language setting for visitor location.
Settings → System → Geolocation
but in the default settings by select "DBIP / GeoIP 2 (Php)" only the "DB-IP City Lite DB" (DP-IP IP to City Lite database) is activated in the section "Location Database" and no IP to ISP or IP to ASN in the section "ISP Database",
https://matomo.org/faq/how-to/setting-up-accurate-visitors-geolocation/
```
public static function getDbIpLiteUrl($type = 'city')
{
$today = Date::today();
return "https://download.db-ip.com/free/dbip-{$type}-lite-{$today->toString('Y-m')}.mmdb.gz";
}
```
https://github.com/matomo-org/matomo/blob/686abd235607cb21db15aa6969a0c4a9b37ddcfb/plugins/GeoIp2/LocationProvider/GeoIp2.php#L51

The DP-IP "IP to City Lite database" haven't included ISP or ASN names - in reference to your "(requires eg DB-IP City DB)".
https://db-ip.com/db/download/ip-to-city-lite

It is possible to use the "DB-IP ASN Lite DB" (DP-IP IP to ASN Lite database) in the section "ISP Database",
https://db-ip.com/db/download/ip-to-asn-lite
Tutorial: https://forum.matomo.org/t/trackingspamprevention-block-isp/65362
see also here: https://github.com/matomo-org/matomo/issues/23142

The blacklist of the ISP/ASN names is founded in the `global.ini.php` in the section:
```
[TrackingSpamPrevention]
block_geoip_organisations [] = "..."
```
Further questions about the manually expansion of the default blocked/filtered ISP/ASN names here:
https://github.com/matomo-org/plugin-TrackingSpamPrevention/issues/170

Your rule for additionally block ISP/ASN:
```
if (empty($this->blockedProviders) || !(\Piwik\Plugin\Manager::getInstance()->isPluginActivated('UserCountry'))) {
return false;
}
```
https://github.com/matomo-org/plugin-TrackingSpamPrevention/blob/5.x-dev/BlockedGeoIp.php#L63C1-L65C10
The rule `isPluginActivated('UserCountry')` is not enough. It must be setted a ISP/ASN Database in the Settings → System → Geolocation → Setup automatic updates of geolocation databases → ISP Database.

PS: The using of browser language for visitor location is a bug:
Matomo must be learn, that language is not location (see tourists, migrants, etc. ...).
https://github.com/matomo-org/matomo/issues/23139

Start in BlockedGeoIp.php at the isPluginActivated('UserCountry') check, then review how the ISP/ASN database is configured through the Geolocation settings and how block_geoip_organisations is used. Confirm the behavior when UserCountry is active without an ISP/ASN database, and add or update coverage so ISP/ASN blocking only relies on available provider data.

Written by the indexing model from the issue text.