From 07fdc072382007812dc6af80fa2912f6b6d987b8 Mon Sep 17 00:00:00 2001
From: Francis Dinh <normandy@firemail.cc>
Date: Fri, 11 May 2018 01:45:10 -0400
Subject: [PATCH] Do not send non-follow undos over ostatus for now

---
 .../web/ostatus/activity_representer.ex       | 41 +++++++++++--------
 1 file changed, 24 insertions(+), 17 deletions(-)

diff --git a/lib/pleroma/web/ostatus/activity_representer.ex b/lib/pleroma/web/ostatus/activity_representer.ex
index 1e9d4a7fb..4f1976e1e 100644
--- a/lib/pleroma/web/ostatus/activity_representer.ex
+++ b/lib/pleroma/web/ostatus/activity_representer.ex
@@ -250,23 +250,30 @@ def to_simple_form(%{data: %{"type" => "Undo"}} = activity, user, with_author) d
 
     mentions = (activity.recipients || []) |> get_mentions
 
-    [
-      {:"activity:object-type", ['http://activitystrea.ms/schema/1.0/activity']},
-      {:"activity:verb", ['http://activitystrea.ms/schema/1.0/unfollow']},
-      {:id, h.(activity.data["id"])},
-      {:title, ['#{user.nickname} stopped following #{follow_activity.data["object"]}']},
-      {:content, [type: 'html'],
-       ['#{user.nickname} stopped following #{follow_activity.data["object"]}']},
-      {:published, h.(inserted_at)},
-      {:updated, h.(updated_at)},
-      {:"activity:object",
-       [
-         {:"activity:object-type", ['http://activitystrea.ms/schema/1.0/person']},
-         {:id, h.(follow_activity.data["object"])},
-         {:uri, h.(follow_activity.data["object"])}
-       ]},
-      {:link, [rel: 'self', type: ['application/atom+xml'], href: h.(activity.data["id"])], []}
-    ] ++ mentions ++ author
+    case follow_activity.data["type"] do
+      "Follow" ->
+        [
+          {:"activity:object-type", ['http://activitystrea.ms/schema/1.0/activity']},
+          {:"activity:verb", ['http://activitystrea.ms/schema/1.0/unfollow']},
+          {:id, h.(activity.data["id"])},
+          {:title, ['#{user.nickname} stopped following #{follow_activity.data["object"]}']},
+          {:content, [type: 'html'],
+           ['#{user.nickname} stopped following #{follow_activity.data["object"]}']},
+          {:published, h.(inserted_at)},
+          {:updated, h.(updated_at)},
+          {:"activity:object",
+           [
+             {:"activity:object-type", ['http://activitystrea.ms/schema/1.0/person']},
+             {:id, h.(follow_activity.data["object"])},
+             {:uri, h.(follow_activity.data["object"])}
+           ]},
+          {:link, [rel: 'self', type: ['application/atom+xml'], href: h.(activity.data["id"])],
+           []}
+        ] ++ mentions ++ author
+
+      _ ->
+        nil
+    end
   end
 
   def to_simple_form(%{data: %{"type" => "Delete"}} = activity, user, with_author) do