Feat: WeVPN support (#591)

internal/configuration/wevpn.go

@@ -0,0 +1,57 @@
+package configuration
+
+import (
+	"fmt"
+
+	"github.com/qdm12/gluetun/internal/constants"
+)
+
+func (settings *Provider) readWevpn(r reader) (err error) {
+	settings.Name = constants.Wevpn
+	servers := r.servers.GetWevpn()
+
+	settings.ServerSelection.TargetIP, err = readTargetIP(r.env)
+	if err != nil {
+		return err
+	}
+
+	settings.ServerSelection.Cities, err = r.env.CSVInside("CITY", constants.WevpnCityChoices(servers))
+	if err != nil {
+		return fmt.Errorf("environment variable CITY: %w", err)
+	}
+
+	settings.ServerSelection.Hostnames, err = r.env.CSVInside("SERVER_HOSTNAME", constants.WevpnHostnameChoices(servers))
+	if err != nil {
+		return fmt.Errorf("environment variable SERVER_HOSTNAME: %w", err)
+	}
+
+	return settings.ServerSelection.OpenVPN.readWevpn(r)
+}
+
+func (settings *OpenVPNSelection) readWevpn(r reader) (err error) {
+	settings.TCP, err = readOpenVPNProtocol(r)
+	if err != nil {
+		return err
+	}
+
+	validation := openvpnPortValidation{
+		tcp:        settings.TCP,
+		allowedTCP: []uint16{53, 1195, 1199, 2018},
+		allowedUDP: []uint16{80, 1194, 1198},
+	}
+	settings.CustomPort, err = readOpenVPNCustomPort(r, validation)
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func (settings *OpenVPN) readWevpn(r reader) (err error) {
+	settings.ClientKey, err = readClientKey(r)
+	if err != nil {
+		return err
+	}
+
+	return nil
+}