Files
gluetun/internal/provider/ivpn/updater/servers.go
2022-08-25 13:24:22 +00:00

83 lines
2.1 KiB
Go

package updater
import (
"context"
"fmt"
"sort"
"github.com/qdm12/gluetun/internal/constants/vpn"
"github.com/qdm12/gluetun/internal/models"
"github.com/qdm12/gluetun/internal/provider/common"
)
func (u *Updater) FetchServers(ctx context.Context, minServers int) (
servers []models.Server, err error) {
data, err := fetchAPI(ctx, u.client)
if err != nil {
return nil, fmt.Errorf("failed fetching API: %w", err)
}
hosts := make([]string, 0, len(data.Servers))
for _, serverData := range data.Servers {
openVPNHost := serverData.Hostnames.OpenVPN
if openVPNHost != "" {
hosts = append(hosts, openVPNHost)
}
wireguardHost := serverData.Hostnames.Wireguard
if wireguardHost != "" {
hosts = append(hosts, wireguardHost)
}
}
if len(hosts) < minServers {
return nil, fmt.Errorf("%w: %d and expected at least %d",
common.ErrNotEnoughServers, len(hosts), minServers)
}
resolveSettings := parallelResolverSettings(hosts)
hostToIPs, warnings, err := u.parallelResolver.Resolve(ctx, resolveSettings)
for _, warning := range warnings {
u.warner.Warn(warning)
}
if err != nil {
return nil, err
}
if len(hostToIPs) < minServers {
return nil, fmt.Errorf("%w: %d and expected at least %d",
common.ErrNotEnoughServers, len(servers), minServers)
}
servers = make([]models.Server, 0, len(hosts))
for _, serverData := range data.Servers {
server := models.Server{
Country: serverData.Country,
City: serverData.City,
ISP: serverData.ISP,
}
switch {
case serverData.Hostnames.OpenVPN != "":
server.Hostname = serverData.Hostnames.OpenVPN
server.VPN = vpn.OpenVPN
server.UDP = true
server.TCP = true
server.IPs = hostToIPs[server.Hostname]
case serverData.Hostnames.Wireguard != "":
server.Hostname = serverData.Hostnames.Wireguard
server.VPN = vpn.Wireguard
server.IPs = hostToIPs[server.Hostname]
server.WgPubKey = serverData.WgPubKey
default:
warning := fmt.Sprintf("server data %v has no OpenVPN nor Wireguard hostname", serverData)
warnings = append(warnings, warning)
}
servers = append(servers, server)
}
sort.Sort(models.SortableServers(servers))
return servers, nil
}