Initial cloud-services repo - gateway service + pkg modules

services/gateway/websocket/helpers.go

@@ -0,0 +1,50 @@
+package websocket
+
+import (
+	"net/http"
+	"strings"
+)
+
+// ParseDBCFromRequest retrieves DBC version from the "fisker-dbc" field
+//
+//	located in header of request
+func ParseDBCFromRequest(r *http.Request) string {
+	return r.Header.Get("Fisker-Dbc-Sha256")
+}
+
+func ParseICCIDFromRequest(r *http.Request) (string, error) {
+	iccid := strings.TrimSpace(r.Header.Get("X-ICCID"))
+
+	// ok, err := validator.ValidateICCIDSimple(iccid)
+	// if err != nil {
+	// 	return iccid, err
+	// } else if !ok {
+	// 	return iccid, errors.Errorf("%s failed to pass ICCID validation", iccid)
+	// }
+
+	return iccid, nil
+}
+
+// ParseDeviceAndVersionFromRequest parses device type and version
+//
+//	of client from User-Agent field in header
+func ParseDeviceAndVersionFromRequest(r *http.Request) (string, string) {
+	var device string
+	var version string
+
+	userAgent := r.Header.Get("User-Agent")
+	specs := strings.Split(userAgent, " ")
+
+	device = strings.ToLower(specs[0])
+
+	switch len(specs) {
+	case 5:
+		version = specs[3]
+	case 4:
+		version = specs[2]
+	case 2:
+		version = specs[1]
+	}
+
+	return device, version
+}