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servers.go
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/
servers.go
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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) {
servers, err = fetchServers(ctx, u.client, u.warner)
if err != nil {
return nil, fmt.Errorf("fetching servers: %w", err)
} else if len(servers) < minServers {
return nil, fmt.Errorf("%w: %d and expected at least %d",
common.ErrNotEnoughServers, len(servers), minServers)
}
hts := make(hostToServer, len(servers))
for _, server := range servers {
hts[server.Hostname] = server
}
hosts := hts.toHostsSlice()
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)
}
hts.adaptWithIPs(hostToIPs)
servers = hts.toServersSlice()
for i := range servers {
servers[i].VPN = vpn.OpenVPN
servers[i].UDP = true
servers[i].TCP = true
}
sort.Sort(models.SortableServers(servers))
return servers, nil
}