Frontend: introducing password/cookie-based authentication

Author: gusthoff

frontend/src/ts/sandbox-redirect.ts

@@ -1,15 +1,33 @@
-import Cookies from 'js-cookie';
+import {Cookies} from 'typescript-cookies'
+
+const cookies = new Cookies({
+  path: '/',
+  secure: true,
+  samesite: 'none',
+})
 
 /**
- * Redirects the user to main learn site if not AdaCore employee
+ * Redirects the user to main learn site if not authenticated
  */
 export function sandboxRedirect(): void {
   /* istanbul ignore next */
-  if (!Cookies.get('AdaCore_staff')) {
-    const msg = 'You have reached learn-sandbox, the learn testing site. ' +
-    'This is reserved for testers only. You will be directed to the main ' +
-    'learn.adacore.com site after pressing OK.';
-    alert(msg);
-    window.location.href = 'http://learn.adacore.com';
+  const cookieName = "Learn_Sandbox_Authenticated";
+  const cookieValue = cookies.get(cookieName) as string;
+  const cookieReferenceValue = "true";
+
+  if (cookieValue != cookieReferenceValue) {
+    const passw = prompt("Enter site password:")
+
+    if (passw != "Ada") {
+      const msg = 'You have reached learn-sandbox, the learn testing site. ' +
+      'This is reserved for testers only. You will be directed to the main ' +
+      'learn.adacore.com site after pressing OK.';
+      alert(msg);
+      window.location.href = 'http://learn.adacore.com';
+    }
+    else
+    {
+      cookies.set(cookieName, cookieReferenceValue, {expires: 3650});
+    }
   }
 }