Send delete event over Mastodon streaming api

Closes #116

2 files changed, 20 insertions, 9 deletions

diff --git a/lib/pleroma/web/activity_pub/activity_pub.ex b/lib/pleroma/web/activity_pub/activity_pub.ex
index 130c06028..0431d62af 100644
--- a/lib/pleroma/web/activity_pub/activity_pub.ex
+++ b/lib/pleroma/web/activity_pub/activity_pub.ex
@@ -92,7 +92,7 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
   def stream_out(activity) do
     public = "https://www.w3.org/ns/activitystreams#Public"
 
-    if activity.data["type"] in ["Create", "Announce"] do
+    if activity.data["type"] in ["Create", "Announce", "Delete"] do
       Pleroma.Web.Streamer.stream("user", activity)
       Pleroma.Web.Streamer.stream("list", activity)
 
@@ -103,16 +103,18 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
           Pleroma.Web.Streamer.stream("public:local", activity)
         end
 
-        activity.data["object"]
-        |> Map.get("tag", [])
-        |> Enum.filter(fn tag -> is_bitstring(tag) end)
-        |> Enum.map(fn tag -> Pleroma.Web.Streamer.stream("hashtag:" <> tag, activity) end)
+        if activity.data["type"] in ["Create"] do
+          activity.data["object"]
+          |> Map.get("tag", [])
+          |> Enum.filter(fn tag -> is_bitstring(tag) end)
+          |> Enum.map(fn tag -> Pleroma.Web.Streamer.stream("hashtag:" <> tag, activity) end)
 
-        if activity.data["object"]["attachment"] != [] do
-          Pleroma.Web.Streamer.stream("public:media", activity)
+          if activity.data["object"]["attachment"] != [] do
+            Pleroma.Web.Streamer.stream("public:media", activity)
 
-          if activity.local do
-            Pleroma.Web.Streamer.stream("public:local:media", activity)
+            if activity.local do
+              Pleroma.Web.Streamer.stream("public:local:media", activity)
+            end
           end
         end
       else
diff --git a/lib/pleroma/web/streamer.ex b/lib/pleroma/web/streamer.ex
index 3136b1b9d..978c77e57 100644
--- a/lib/pleroma/web/streamer.ex
+++ b/lib/pleroma/web/streamer.ex
@@ -205,6 +205,15 @@ defmodule Pleroma.Web.Streamer do
     end)
   end
 
+  def push_to_socket(topics, topic, %Activity{id: id, data: %{"type" => "Delete"}}) do
+    Enum.each(topics[topic] || [], fn socket ->
+      send(
+        socket.transport_pid,
+        {:text, %{event: "delete", payload: to_string(id)} |> Jason.encode!()}
+      )
+    end)
+  end
+
   def push_to_socket(topics, topic, item) do
     Enum.each(topics[topic] || [], fn socket ->
       # Get the current user so we have up-to-date blocks etc.