Add check to verify email address provided for snapshot

cmd/kanvas-snapshot/main.go

@@ -9,6 +9,7 @@ import (
 	"net/url"
 	"os"
 	"path/filepath"
+	"regexp"
 	"strings"
 	"time"
 
@@ -31,6 +32,8 @@ var (
 	designName string
 )
 
+var emailRegex = regexp.MustCompile(`^[a-z0-9._%+\-]+@[a-z0-9.\-]+\.[a-z]{2,}$`)
+
 var generateKanvasSnapshotCmd = &cobra.Command{
 	Use:   "kanvas",
 	Short: "Generate a Kanvas snapshot using a Helm chart",
@@ -54,7 +57,9 @@ var generateKanvasSnapshotCmd = &cobra.Command{
 			designName = ExtractNameFromURI(chartURI)
 			Log.Warnf("No design name provided. Using extracted name: %s", designName)
 		}
-
+		if email != "" && !isValidEmail(email) {
+			handleError(errors.ErrInvalidEmailFormat(email))
+		}
 		// Create Meshery Snapshot
 		designID, err := CreateMesheryDesign(chartURI, designName, email)
 		if err != nil {
@@ -255,6 +260,10 @@ func GenerateSnapshot(designID, chartURI, email, assetLocation string) error {
 	return nil
 }
 
+func isValidEmail(email string) bool {
+	return emailRegex.MatchString(email)
+}
+
 func main() {
 
 	generateKanvasSnapshotCmd.Flags().StringVarP(&chartURI, "file", "f", "", "URI to Helm chart (required)")

internal/errors/error.go

@@ -14,6 +14,7 @@ var (
 	ErrDecodingAPICode              = "kanvas-snapshot-905"
 	ErrUnexpectedResponseCodeCode   = "kanvas-snapshot-906"
 	ErrRequiredFieldNotProvidedCode = "kanvas-snapshot-907"
+	ErrInvalidEmailFormatCode       = "kanvas-snapshot-908"
 )
 
 func ErrInvalidChartURI(err error) error {
@@ -78,3 +79,12 @@ func ErrRequiredFieldNotProvided(err error, field string) error {
 		[]string{"Ensure value for flag \"%s\" is correctly provided."},
 	)
 }
+
+func ErrInvalidEmailFormat(email string) error {
+	return errors.New(ErrInvalidEmailFormatCode, errors.Alert,
+		[]string{"Invalid email format provided."},
+		[]string{fmt.Sprintf("The provided email '%s' is not a valid email format.", email)},
+		[]string{"The email provided for the Kanvas snapshot request is not in the correct format."},
+		[]string{"Ensure the email address follows the correct format (e.g., user@example.com)."},
+	)
+}