Feat: ExpressVPN support (#623)

internal/configuration/expressvpn.go

@@ -0,0 +1,40 @@
+package configuration
+
+import (
+	"fmt"
+
+	"github.com/qdm12/gluetun/internal/constants"
+)
+
+func (settings *Provider) readExpressvpn(r reader) (err error) {
+	settings.Name = constants.Expressvpn
+	servers := r.servers.GetExpressvpn()
+
+	settings.ServerSelection.TargetIP, err = readTargetIP(r.env)
+	if err != nil {
+		return err
+	}
+
+	settings.ServerSelection.Hostnames, err = r.env.CSVInside("SERVER_HOSTNAME",
+		constants.ExpressvpnHostnameChoices(servers))
+	if err != nil {
+		return fmt.Errorf("environment variable SERVER_HOSTNAME: %w", err)
+	}
+
+	settings.ServerSelection.Countries, err = r.env.CSVInside("COUNTRY", constants.ExpressvpnCountriesChoices(servers))
+	if err != nil {
+		return fmt.Errorf("environment variable COUNTRY: %w", err)
+	}
+
+	settings.ServerSelection.Cities, err = r.env.CSVInside("CITY", constants.ExpressvpnCityChoices(servers))
+	if err != nil {
+		return fmt.Errorf("environment variable CITY: %w", err)
+	}
+
+	settings.ServerSelection.OpenVPN.TCP, err = readOpenVPNProtocol(r)
+	if err != nil {
+		return err
+	}
+
+	return nil
+}

internal/configuration/provider.go

@@ -53,6 +53,8 @@ func (settings *Provider) read(r reader, vpnType string) error {
 		err = settings.readCustom(r, vpnType)
 	case constants.Cyberghost:
 		err = settings.readCyberghost(r)
+	case constants.Expressvpn:
+		err = settings.readExpressvpn(r)
 	case constants.Fastestvpn:
 		err = settings.readFastestvpn(r)
 	case constants.HideMyAss:
@@ -104,7 +106,8 @@ func (settings *Provider) readVPNServiceProvider(r reader, vpnType string) (err
 	case constants.OpenVPN:
 		allowedVPNServiceProviders = []string{
 			constants.Custom,
-			"cyberghost", "fastestvpn", "hidemyass", "ipvanish", "ivpn", "mullvad", "nordvpn",
+			"cyberghost", constants.Expressvpn, "fastestvpn", "hidemyass", "ipvanish",
+			"ivpn", "mullvad", "nordvpn",
 			"privado", "pia", "private internet access", "privatevpn", "protonvpn",
 			"purevpn", "surfshark", "torguard", constants.VPNUnlimited, "vyprvpn",
 			constants.Wevpn, "windscribe"}

internal/configuration/provider_test.go

@@ -35,6 +35,25 @@ func Test_Provider_lines(t *testing.T) {
 				"      |--Protocol: udp",
 			},
 		},
+		"expressvpn": {
+			settings: Provider{
+				Name: constants.Expressvpn,
+				ServerSelection: ServerSelection{
+					VPN:       constants.OpenVPN,
+					Hostnames: []string{"a", "b"},
+					Countries: []string{"c", "d"},
+					Cities:    []string{"e", "f"},
+				},
+			},
+			lines: []string{
+				"|--Expressvpn settings:",
+				"   |--Countries: c, d",
+				"   |--Cities: e, f",
+				"   |--Hostnames: a, b",
+				"   |--OpenVPN selection:",
+				"      |--Protocol: udp",
+			},
+		},
 		"fastestvpn": {
 			settings: Provider{
 				Name: constants.Fastestvpn,

internal/configuration/selection.go

@@ -15,11 +15,11 @@ type ServerSelection struct { //nolint:maligned
 	// Cyberghost, PIA, Protonvpn, Surfshark, Windscribe, Vyprvpn, NordVPN
 	Regions []string `json:"regions"`
 
-	// Fastestvpn, HideMyAss, IPVanish, IVPN, Mullvad, PrivateVPN, Protonvpn, PureVPN, VPNUnlimited
+	// Expressvpn, Fastestvpn, HideMyAss, IPVanish, IVPN, Mullvad, PrivateVPN, Protonvpn, PureVPN, VPNUnlimited
 	Countries []string `json:"countries"`
-	// HideMyAss, IPVanish, IVPN, Mullvad, PrivateVPN, Protonvpn, PureVPN, VPNUnlimited, WeVPN, Windscribe
+	// Expressvpn, HideMyAss, IPVanish, IVPN, Mullvad, PrivateVPN, Protonvpn, PureVPN, VPNUnlimited, WeVPN, Windscribe
 	Cities []string `json:"cities"`
-	// Fastestvpn, HideMyAss, IPVanish, IVPN, PrivateVPN, Windscribe, Privado, Protonvpn, VPNUnlimited, WeVPN
+	// Expressvpn, Fastestvpn, HideMyAss, IPVanish, IVPN, PrivateVPN, Windscribe, Privado, Protonvpn, VPNUnlimited, WeVPN
 	Hostnames []string `json:"hostnames"`
 	Names     []string `json:"names"` // Protonvpn
 

internal/configuration/updater.go

@@ -12,6 +12,7 @@ type Updater struct {
 	Period       time.Duration `json:"period"`
 	DNSAddress   string        `json:"dns_address"`
 	Cyberghost   bool          `json:"cyberghost"`
+	Expressvpn   bool          `json:"expressvpn"`
 	Fastestvpn   bool          `json:"fastestvpn"`
 	HideMyAss    bool          `json:"hidemyass"`
 	Ipvanish     bool          `json:"ipvanish"`