add invalid lable for invalid zip files

Author: ianktc

functions/packages/feed-form/src/impl/feed-form-impl.ts

@@ -327,7 +327,17 @@ async function createGithubIssue(
   if (formData.country && formData.country in countries) {
     const country = countries[formData.country as TCountryCode];
     const continent = continents[country.continent].toLowerCase();
-    if (continent != null) labels.push(continent);
+    if (continent != null) labels.push(`region/${continent}`);
+  }
+
+  if (formData.authType !== "None - 0") {
+    labels.push("auth required");
+  }
+
+  if (!isValidZipUrl(formData.feedLink)) {
+    if(!await isValidZipDownload(formData.feedLink)) {
+      labels.push("invalid");
+    }
   }
 
   try {
@@ -441,3 +451,38 @@ export function buildGithubIssueBody(
   return content;
 }
 /* eslint-enable */
+
+/**
+ * Parses the provided URL to check if it is a valid ZIP file URL
+ * @param url The direct download URL provided in the feed form
+ * @returns {boolean} Whether the URL is a valid ZIP file URL
+ */
+function isValidZipUrl(url: string | undefined | null): boolean {
+  if (!url) return false;
+  try {
+    const parsed = new URL(url);
+    return parsed.pathname.toLowerCase().endsWith(".zip");
+  } catch {
+    return false;
+  }
+}
+
+/**
+ * Checks if the provided URL points to a valid ZIP file by making a HEAD request
+ * @param url The direct download URL provided in the feed form
+ * @returns {boolean} Whether the URL downloads a valid ZIP file
+ */
+async function isValidZipDownload(url: string | undefined | null): Promise<boolean> {
+  try {
+    if (!url) return false;
+    const response = await axios.head(url, {maxRedirects: 2});
+    const contentType = response.headers["content-type"];
+    const contentDisposition = response.headers["content-disposition"];
+
+    if (contentType && contentType.includes("zip")) return true;
+    if (contentDisposition && contentDisposition.includes("zip")) return true;
+    return false;
+  } catch {
+    return false;
+  }
+}