refactored SAN validation logic

backend/src/services/certificate-authority/certificate-authority-validators.ts

@@ -2,6 +2,7 @@ import { z } from "zod";
 
 import { isValidIp } from "@app/lib/ip";
 import { isFQDN } from "@app/lib/validator/validate-url";
+import { TAltNameMapping, TAltNameType } from "@app/services/certificate/certificate-types";
 
 const isValidDate = (dateString: string) => {
   const date = new Date(dateString);
@@ -56,3 +57,19 @@ export const validateAltNamesField = z
       message: "Each alt name must be a valid hostname, email address, IP address or URL"
     }
   );
+
+export const validateAndMapAltNameType = (name: string): TAltNameMapping | null => {
+  if (isFQDN(name, { allow_wildcard: true, require_tld: false })) {
+    return { type: TAltNameType.DNS, value: name };
+  }
+  if (z.string().url().safeParse(name).success) {
+    return { type: TAltNameType.URL, value: name };
+  }
+  if (z.string().email().safeParse(name).success) {
+    return { type: TAltNameType.EMAIL, value: name };
+  }
+  if (isValidIp(name)) {
+    return { type: TAltNameType.IP, value: name };
+  }
+  return null;
+};