Added Mullvad configuration builder

internal/mullvad/mullvad.go

@@ -0,0 +1,27 @@
+package mullvad
+
+import (
+	"github.com/qdm12/golibs/files"
+	"github.com/qdm12/golibs/logging"
+	"github.com/qdm12/golibs/network"
+	"github.com/qdm12/private-internet-access-docker/internal/models"
+)
+
+const logPrefix = "Mullvad configurator"
+
+// Configurator contains methods to download, read and modify the openvpn configuration to connect as a client
+type Configurator interface {
+	GetOpenVPNConnections(country models.MullvadCountry, city models.MullvadCity, provider models.MullvadProvider, protocol models.NetworkProtocol, customPort uint16) (connections []models.OpenVPNConnection, err error)
+	BuildConf(connections []models.OpenVPNConnection, uid, gid int) (err error)
+}
+
+type configurator struct {
+	client      network.Client
+	fileManager files.FileManager
+	logger      logging.Logger
+}
+
+// NewConfigurator returns a new Configurator object
+func NewConfigurator(client network.Client, fileManager files.FileManager, logger logging.Logger) Configurator {
+	return &configurator{client, fileManager, logger}
+}