Add link to download all of your CourseRoad data as a JSON file

download.php

@@ -0,0 +1,24 @@
+<?php
+
+require 'functions.php';
+
+$athena = $_SESSION['athena'];
+isset($athena) or die('Sorry, please log in again.');
+
+header('Content-type: text/javascript');
+header('Content-Disposition: attachment; filename="courseroad.'.$athena.'.json"');
+
+$data = array('athena' => $athena);
+$data = $data + CourseRoadDB::getUserPrefs($athena);
+$data['roads'] = array();
+
+$roads = CourseRoadDB::getSavedRoads($athena);
+foreach ($roads as $road) {
+  $road['classes'] = json_decode(CourseRoadDB::decrypt($road['classes']), true);
+  $road['majors'] = json_decode(CourseRoadDB::decrypt($road['majors']), true);
+  $data['roads'][] = $road;
+}
+
+echo json_encode($data);
+
+die();

index.php

@@ -120,7 +120,13 @@
       <br>
       <?php
         if ($loggedin) {
-          echo "Hello, <strong>$athena</strong>! ";
+          echo <<<EOD
+      Hello, <strong>$athena</strong>!<br>
+      <br>
+      New:
+      <a href="download.php">click here</a>
+      to download all of your CourseRoad data.
+EOD;
         } else {
           if (!$_SESSION['triedcert']) {
             echo <<<EOD