fix(protonvpn): set free field for free servers

internal/provider/protonvpn/updater/iptoserver.go

@@ -10,7 +10,7 @@ import (
 type ipToServer map[string]models.Server
 
 func (its ipToServer) add(country, region, city, name, hostname string,
-	entryIP net.IP) {
+	free bool, entryIP net.IP) {
 	key := entryIP.String()
 
 	server, ok := its[key]
@@ -24,6 +24,7 @@ func (its ipToServer) add(country, region, city, name, hostname string,
 	server.City = city
 	server.ServerName = name
 	server.Hostname = hostname
+	server.Free = free
 	server.UDP = true
 	server.TCP = true
 	server.IPs = []net.IP{entryIP}

internal/provider/protonvpn/updater/servers.go

@@ -6,6 +6,7 @@ import (
 	"context"
 	"fmt"
 	"sort"
+	"strings"
 
 	"github.com/qdm12/gluetun/internal/constants"
 	"github.com/qdm12/gluetun/internal/models"
@@ -47,6 +48,12 @@ func (u *Updater) FetchServers(ctx context.Context, minServers int) (
 			hostname := physicalServer.Domain
 			entryIP := physicalServer.EntryIP
 
+			lowerCaseName := strings.ToLower(name)
+			var free bool
+			if strings.Contains(hostname, "free") || strings.Contains(lowerCaseName, "free") {
+				free = true
+			}
+
 			// Note: for multi-hop use the server name or hostname
 			// instead of the country
 			countryCode := logicalServer.ExitCountry
@@ -55,7 +62,7 @@ func (u *Updater) FetchServers(ctx context.Context, minServers int) (
 				u.warner.Warn(warning)
 			}
 
-			ipToServer.add(country, region, city, name, hostname, entryIP)
+			ipToServer.add(country, region, city, name, hostname, free, entryIP)
 		}
 	}