From 8de5608976dc8a73a400267601acb4c8e127de5a Mon Sep 17 00:00:00 2001
From: winter
Date: Thu, 16 Jan 2025 18:33:18 +0000
Subject: note privacy and summary stuff

---
 routes/note.php | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

(limited to 'routes/note.php')

diff --git a/routes/note.php b/routes/note.php
index 8a6c9da..f1d6650 100644
--- a/routes/note.php
+++ b/routes/note.php
@@ -1,8 +1,12 @@
 <?php
 
+use Digitigrade\HttpResponseStatus\Forbidden;
 use Digitigrade\HttpResponseStatus\NotFound;
 use Digitigrade\HttpResponseStatus\TemporaryRedirect;
+use Digitigrade\Model\Instance;
 use Digitigrade\Model\Note;
+use Digitigrade\Model\NotePrivacyScope;
+use Digitigrade\Model\UserAccount;
 use Digitigrade\Router;
 
 Router::getInstance()->mount('/note/:id', function (array $args) {
@@ -16,6 +20,14 @@ Router::getInstance()->mount('/note/:id', function (array $args) {
     if (isset($_SERVER['HTTP_ACCEPT']) && str_contains($_SERVER['HTTP_ACCEPT'], 'text/html')) {
         throw new TemporaryRedirect('/@/' . $note->author->handle . "/note/$note->id");
     }
+    // if it's not public we need to check whether the requesting instance is allowed to see it
+    if ($note->privacy->scope != NotePrivacyScope::PUBLIC ) {
+        $instance = Instance::requireByRequestHeaders();
+        $allowed = $note->getRelevantServers();
+        if (!in_array($instance, $allowed)) {
+            throw new Forbidden();
+        }
+    }
     json_response($note);
 });
 
@@ -28,5 +40,12 @@ Router::getInstance()->mount('/@/:handle/note/:id', function (array $args) {
     if ($args['handle'] != $note->author->getFullHandle()) {
         throw new TemporaryRedirect('/@/' . $note->author->getFullHandle() . "/note/$note->id");
     }
+    // check the current user is allowed to see it
+    if ($note->privacy->scope != NotePrivacyScope::PUBLIC ) {
+        $user = UserAccount::requireByCurrentSession();
+        if (!in_array($user->actor, $note->getRelevantActors())) {
+            throw new Forbidden();
+        }
+    }
     render_template('thread_page', ['note' => $note]);
 });
-- 
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