147 lines
3.9 KiB
Go
147 lines
3.9 KiB
Go
package provider
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
"math/rand"
|
|
"net"
|
|
"net/http"
|
|
"strconv"
|
|
"strings"
|
|
|
|
"github.com/qdm12/gluetun/internal/constants"
|
|
"github.com/qdm12/gluetun/internal/firewall"
|
|
"github.com/qdm12/gluetun/internal/models"
|
|
"github.com/qdm12/gluetun/internal/settings"
|
|
"github.com/qdm12/golibs/logging"
|
|
"github.com/qdm12/golibs/os"
|
|
)
|
|
|
|
type cyberghost struct {
|
|
servers []models.CyberghostServer
|
|
randSource rand.Source
|
|
}
|
|
|
|
func newCyberghost(servers []models.CyberghostServer, timeNow timeNowFunc) *cyberghost {
|
|
return &cyberghost{
|
|
servers: servers,
|
|
randSource: rand.NewSource(timeNow().UnixNano()),
|
|
}
|
|
}
|
|
|
|
func (c *cyberghost) filterServers(regions []string, group string) (servers []models.CyberghostServer) {
|
|
for _, server := range c.servers {
|
|
switch {
|
|
case len(group) > 0 && !strings.EqualFold(group, server.Group),
|
|
filterByPossibilities(server.Region, regions):
|
|
default:
|
|
servers = append(servers, server)
|
|
}
|
|
}
|
|
return servers
|
|
}
|
|
|
|
func (c *cyberghost) GetOpenVPNConnection(selection models.ServerSelection) (
|
|
connection models.OpenVPNConnection, err error) {
|
|
const httpsPort = 443
|
|
if selection.TargetIP != nil {
|
|
return models.OpenVPNConnection{IP: selection.TargetIP, Port: httpsPort, Protocol: selection.Protocol}, nil
|
|
}
|
|
|
|
servers := c.filterServers(selection.Regions, selection.Group)
|
|
if len(servers) == 0 {
|
|
return connection,
|
|
fmt.Errorf("no server found for regions %s and group %q", commaJoin(selection.Regions), selection.Group)
|
|
}
|
|
|
|
var connections []models.OpenVPNConnection
|
|
for _, server := range servers {
|
|
for _, IP := range server.IPs {
|
|
connections = append(connections, models.OpenVPNConnection{IP: IP, Port: httpsPort, Protocol: selection.Protocol})
|
|
}
|
|
}
|
|
|
|
return pickRandomConnection(connections, c.randSource), nil
|
|
}
|
|
|
|
func (c *cyberghost) BuildConf(connection models.OpenVPNConnection,
|
|
username string, settings settings.OpenVPN) (lines []string) {
|
|
if len(settings.Cipher) == 0 {
|
|
settings.Cipher = aes256cbc
|
|
}
|
|
if len(settings.Auth) == 0 {
|
|
settings.Auth = sha256
|
|
}
|
|
lines = []string{
|
|
"client",
|
|
"dev tun",
|
|
"nobind",
|
|
"persist-key",
|
|
"persist-tun",
|
|
"remote-cert-tls server",
|
|
"ping 10",
|
|
"ping-exit 60",
|
|
"ping-timer-rem",
|
|
|
|
// Cyberghost specific
|
|
// "redirect-gateway def1",
|
|
"ncp-disable",
|
|
"explicit-exit-notify 2",
|
|
"script-security 2",
|
|
"route-delay 5",
|
|
|
|
// Added constant values
|
|
"auth-nocache",
|
|
"mute-replay-warnings",
|
|
"pull-filter ignore \"auth-token\"", // prevent auth failed loops
|
|
"auth-retry nointeract",
|
|
"suppress-timestamps",
|
|
|
|
// Modified variables
|
|
fmt.Sprintf("verb %d", settings.Verbosity),
|
|
fmt.Sprintf("auth-user-pass %s", constants.OpenVPNAuthConf),
|
|
fmt.Sprintf("proto %s", connection.Protocol),
|
|
fmt.Sprintf("remote %s %d", connection.IP, connection.Port),
|
|
fmt.Sprintf("cipher %s", settings.Cipher),
|
|
fmt.Sprintf("auth %s", settings.Auth),
|
|
}
|
|
if strings.HasSuffix(settings.Cipher, "-gcm") {
|
|
lines = append(lines, "ncp-ciphers AES-256-GCM:AES-256-CBC:AES-128-GCM")
|
|
}
|
|
if !settings.Root {
|
|
lines = append(lines, "user "+username)
|
|
}
|
|
if settings.MSSFix > 0 {
|
|
lines = append(lines, "mssfix "+strconv.Itoa(int(settings.MSSFix)))
|
|
}
|
|
lines = append(lines, []string{
|
|
"<ca>",
|
|
"-----BEGIN CERTIFICATE-----",
|
|
constants.CyberghostCertificate,
|
|
"-----END CERTIFICATE-----",
|
|
"</ca>",
|
|
}...)
|
|
lines = append(lines, []string{
|
|
"<cert>",
|
|
"-----BEGIN CERTIFICATE-----",
|
|
settings.Provider.ExtraConfigOptions.ClientCertificate,
|
|
"-----END CERTIFICATE-----",
|
|
"</cert>",
|
|
}...)
|
|
lines = append(lines, []string{
|
|
"<key>",
|
|
"-----BEGIN PRIVATE KEY-----",
|
|
settings.Provider.ExtraConfigOptions.ClientKey,
|
|
"-----END PRIVATE KEY-----",
|
|
"</key>",
|
|
"",
|
|
}...)
|
|
return lines
|
|
}
|
|
|
|
func (c *cyberghost) PortForward(ctx context.Context, client *http.Client,
|
|
openFile os.OpenFileFunc, pfLogger logging.Logger, gateway net.IP, fw firewall.Configurator,
|
|
syncState func(port uint16) (pfFilepath models.Filepath)) {
|
|
panic("port forwarding is not supported for cyberghost")
|
|
}
|