Files
gluetun/internal/configuration/surfshark.go
2021-09-14 19:27:13 +00:00

103 lines
3.0 KiB
Go

package configuration
import (
"fmt"
"strings"
"github.com/qdm12/gluetun/internal/constants"
"github.com/qdm12/gluetun/internal/models"
"github.com/qdm12/golibs/params"
)
func (settings *Provider) readSurfshark(r reader) (err error) {
settings.Name = constants.Surfshark
servers := r.servers.GetSurfshark()
settings.ServerSelection.TargetIP, err = readTargetIP(r.env)
if err != nil {
return err
}
settings.ServerSelection.Countries, err = r.env.CSVInside("COUNTRY", constants.SurfsharkCountryChoices(servers))
if err != nil {
return fmt.Errorf("environment variable COUNTRY: %w", err)
}
settings.ServerSelection.Cities, err = r.env.CSVInside("CITY", constants.SurfsharkCityChoices(servers))
if err != nil {
return fmt.Errorf("environment variable CITY: %w", err)
}
settings.ServerSelection.Hostnames, err = r.env.CSVInside("SERVER_HOSTNAME",
constants.SurfsharkHostnameChoices(servers))
if err != nil {
return fmt.Errorf("environment variable SERVER_HOSTNAME: %w", err)
}
regionChoices := constants.SurfsharkRegionChoices(servers)
regionChoices = append(regionChoices, constants.SurfsharkRetroLocChoices(servers)...)
settings.ServerSelection.Regions, err = r.env.CSVInside("REGION", regionChoices)
if err != nil {
return fmt.Errorf("environment variable REGION: %w", err)
}
// Retro compatibility
// TODO remove in v4
settings.ServerSelection = surfsharkRetroRegion(settings.ServerSelection)
settings.ServerSelection.MultiHopOnly, err = r.env.YesNo("MULTIHOP_ONLY", params.Default("no"))
if err != nil {
return fmt.Errorf("environment variable MULTIHOP_ONLY: %w", err)
}
return settings.ServerSelection.OpenVPN.readProtocolOnly(r)
}
func surfsharkRetroRegion(selection ServerSelection) (
updatedSelection ServerSelection) {
locationData := constants.SurfsharkLocationData()
retroToLocation := make(map[string]models.SurfsharkLocationData, len(locationData))
for _, data := range locationData {
if data.RetroLoc == "" {
continue
}
retroToLocation[strings.ToLower(data.RetroLoc)] = data
}
for i, region := range selection.Regions {
location, ok := retroToLocation[region]
if !ok {
continue
}
selection.Regions[i] = strings.ToLower(location.Region)
selection.Countries = append(selection.Countries, strings.ToLower(location.Country))
selection.Cities = append(selection.Cities, strings.ToLower(location.City)) // even empty string
selection.Hostnames = append(selection.Hostnames, location.Hostname)
}
selection.Regions = dedupSlice(selection.Regions)
selection.Countries = dedupSlice(selection.Countries)
selection.Cities = dedupSlice(selection.Cities)
selection.Hostnames = dedupSlice(selection.Hostnames)
return selection
}
func dedupSlice(slice []string) (deduped []string) {
if slice == nil {
return nil
}
deduped = make([]string, 0, len(slice))
seen := make(map[string]struct{}, len(slice))
for _, s := range slice {
if _, ok := seen[s]; !ok {
seen[s] = struct{}{}
deduped = append(deduped, s)
}
}
return deduped
}