From 66801ba91a51c9b7df6d85136d677350d2495b86 Mon Sep 17 00:00:00 2001
From: Vitaly Takmazov
Date: Tue, 18 Apr 2023 13:36:37 +0300
Subject: ActivityPub compatibility with private posts

---
 src/main/java/com/juick/ActivityPubManager.java       | 10 +++++++---
 src/main/java/com/juick/www/api/Messages.java         |  4 ++++
 src/main/java/com/juick/www/api/activity/Profile.java |  4 ++++
 3 files changed, 15 insertions(+), 3 deletions(-)

diff --git a/src/main/java/com/juick/ActivityPubManager.java b/src/main/java/com/juick/ActivityPubManager.java
index 62faccf6..d5ee0b50 100644
--- a/src/main/java/com/juick/ActivityPubManager.java
+++ b/src/main/java/com/juick/ActivityPubManager.java
@@ -183,7 +183,6 @@ public class ActivityPubManager implements ActivityListener, NotificationListene
         update.setId(note.getId() + "#update");
         update.setActor(me.getId());
         update.setObject(note);
-        update.setTo(Collections.singletonList(Context.ACTIVITYSTREAMS_PUBLIC));
         update.setPublished(Instant.now());
         logger.info("{} sends note update to followers", me.getId());
         activityToFollowers(user, me, update);
@@ -313,8 +312,13 @@ public class ActivityPubManager implements ActivityListener, NotificationListene
         if (MessageUtils.isPM(msg)) {
             note.setTo(Collections.singletonList(profileUriBuilder.personUri(msg.getTo())));
         } else {
-            note.setTo(Collections.singletonList(Context.ACTIVITYSTREAMS_PUBLIC));
-            note.setCc(Collections.singletonList(profileUriBuilder.followersUri(msg.getUser())));
+            var followers = Collections.singletonList(profileUriBuilder.followersUri(msg.getUser()));
+            if (!msg.FriendsOnly) {
+                note.setTo(Collections.singletonList(Context.ACTIVITYSTREAMS_PUBLIC));
+                note.setCc(followers);
+            } else {
+                note.setTo(followers);
+            }
         }
         note.setPublished(msg.getCreated());
         if (StringUtils.isNotBlank(msg.getAttachmentType())) {
diff --git a/src/main/java/com/juick/www/api/Messages.java b/src/main/java/com/juick/www/api/Messages.java
index f059aa88..d127d166 100644
--- a/src/main/java/com/juick/www/api/Messages.java
+++ b/src/main/java/com/juick/www/api/Messages.java
@@ -20,6 +20,7 @@ package com.juick.www.api;
 import com.juick.model.Message;
 import com.juick.model.Tag;
 import com.juick.model.User;
+import com.juick.service.activities.UpdateEvent;
 import com.juick.util.WebUtils;
 import com.juick.www.WebApp;
 import com.juick.model.CommandResult;
@@ -208,6 +209,9 @@ public class Messages {
         if (visitor.isPremium() || userService.isAdminUser(visitor)) {
             var msg = messagesService.getMessage(mid).orElseThrow(HttpNotFoundException::new);
             messagesService.setFriendsOnly(mid, !msg.FriendsOnly);
+            msg = messagesService.getMessage(mid).orElseThrow(HttpNotFoundException::new);
+            applicationEventPublisher.publishEvent(
+                    new UpdateEvent(this, visitor, msg));
         } else {
             throw new HttpBadRequestException();
         }
diff --git a/src/main/java/com/juick/www/api/activity/Profile.java b/src/main/java/com/juick/www/api/activity/Profile.java
index f37ef6ff..68ea66ae 100644
--- a/src/main/java/com/juick/www/api/activity/Profile.java
+++ b/src/main/java/com/juick/www/api/activity/Profile.java
@@ -21,6 +21,7 @@ import com.fasterxml.jackson.core.JsonProcessingException;
 import com.fasterxml.jackson.databind.ObjectMapper;
 import com.juick.model.Message;
 import com.juick.model.User;
+import com.juick.util.HttpForbiddenException;
 import com.juick.util.formatters.PlainTextFormatter;
 import com.juick.model.CommandResult;
 import com.juick.ActivityPubManager;
@@ -258,6 +259,9 @@ public class Profile {
         Context.ACTIVITYSTREAMS_PROFILE_MEDIA_TYPE, MediaType.APPLICATION_JSON_VALUE })
     public Context showNote(@PathVariable int mid, @PathVariable int rid) {
         var message = activityPubManager.findMessage(mid, rid);
+        if (!messagesService.canViewThread(mid, 0)) {
+            throw new HttpForbiddenException();
+        }
         if (message != null) {
             return Context.build(activityPubManager.makeNote(message));
         }
-- 
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