WIP on add/edit feed page (#4)

src/public/feed.php

@@ -0,0 +1,30 @@
+<?php
+/**
+ * Add/Edit Feed Page
+ *
+ * Allows users to add or edit RSS feeds
+ */
+
+include '../start.php';
+
+Security::verifyUser();
+page_head('Feed page');
+
+if ($_SERVER['REQUEST_METHOD'] == 'POST') {
+    // TODO: get feed, add if new, reject if existing but not owned by this user, update otherwise
+    $feed = array();
+} else {
+    // TODO: Retrieve feed by ID if not new
+    $feed = [ 'id' => $_GET['id'], 'url' => '' ];
+}
+?>
+<h1>Add/Edit Feed</h1>
+<form method=POST action=/feed hx-post=/feed>
+    <input type=hidden name=id value="<?=$feed['id']?>">
+    <label>
+        Feed URL
+        <input type=url name=url required autofocus value="<?=$feed['url']?>">
+    </label>
+</form>
+<?php
+page_foot();