fixing small issues in the project

components/utils/urlUtils.ts

@@ -6,4 +6,29 @@ export const getFileNameFromUrl = (url: URL): string => {
   } catch {
     return pathName;
   }
-};
+};
+
+const SCHEME_PATTERN = /^[a-z][a-z\d+.-]*:/i;
+const AUTHORITY_SCHEME_PATTERN = /^[a-z][a-z\d+.-]*:\/\//i;
+const ALLOWED_WEBSITE_PROTOCOLS = new Set(['http:', 'https:', 'ftp:', 'mailto:']);
+
+export const normalizeWebsiteUrl = (raw: string): string | null => {
+  const trimmed = raw.trim();
+  if (!trimmed) return null;
+  const hasScheme = AUTHORITY_SCHEME_PATTERN.test(trimmed) || (SCHEME_PATTERN.test(trimmed) && !/^[^:/]+:\d/.test(trimmed));
+  try {
+    const url = new URL(hasScheme ? trimmed : `https://${trimmed}`);
+    return ALLOWED_WEBSITE_PROTOCOLS.has(url.protocol) ? url.href : null;
+  } catch {
+    return null;
+  }
+};
+
+export const parseServerAddress = (address: string): URL => {
+  const trimmed = address.trim();
+  const target = new URL(AUTHORITY_SCHEME_PATTERN.test(trimmed) ? trimmed : `http://${trimmed}`);
+  if (target.protocol !== 'http:' && target.protocol !== 'https:') {
+    throw new Error('Server addresses must use HTTP or HTTPS.');
+  }
+  return target;
+};