增加DNS域名管理

internal/web/actions/default/dns/domains/domainutils/utils.go

@@ -0,0 +1,18 @@
+package domainutils
+
+import (
+	"regexp"
+	"strings"
+)
+
+// 校验域名格式
+func ValidateDomainFormat(domain string) bool {
+	pieces := strings.Split(domain, ".")
+	for _, piece := range pieces {
+		if !regexp.MustCompile(`^[a-z0-9-]+$`).MatchString(piece) {
+			return false
+		}
+	}
+
+	return true
+}