Remerge of hashtag following (#341)

[akkoma] / lib / pleroma / web / activity_pub / activity_pub.ex

diff --git a/lib/pleroma/web/activity_pub/activity_pub.ex b/lib/pleroma/web/activity_pub/activity_pub.ex
index 3a9b08cf05d39bfa74167ceb7c7c41e9ca843838..3f46a8ecb18d6f35c2785f268311b69dff153457 100644 (file)
--- a/lib/pleroma/web/activity_pub/activity_pub.ex
+++ b/lib/pleroma/web/activity_pub/activity_pub.ex
@@ -105,6 +105,23 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
     end
   end
 
+  @unpersisted_activity_types ~w[Undo Delete Remove Accept Reject]
+  @impl true
+  def persist(%{"type" => type} = object, [local: false] = meta)
+      when type in @unpersisted_activity_types do
+    {:ok, object, meta}
+    {recipients, _, _} = get_recipients(object)
+
+    unpersisted = %Activity{
+      data: object,
+      local: false,
+      recipients: recipients,
+      actor: object["actor"]
+    }
+
+    {:ok, unpersisted, meta}
+  end
+
   @impl true
   def persist(object, meta) do
     with local <- Keyword.fetch!(meta, :local),
@@ -916,6 +933,31 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
     )
   end
 
+  # Essentially, either look for activities addressed to `recipients`, _OR_ ones
+  # that reference a hashtag that the user follows
+  # Firstly, two fallbacks in case there's no hashtag constraint, or the user doesn't
+  # follow any
+  defp restrict_recipients_or_hashtags(query, recipients, user, nil) do
+    restrict_recipients(query, recipients, user)
+  end
+
+  defp restrict_recipients_or_hashtags(query, recipients, user, []) do
+    restrict_recipients(query, recipients, user)
+  end
+
+  defp restrict_recipients_or_hashtags(query, recipients, _user, hashtag_ids) do
+    from([activity, object] in query)
+    |> join(:left, [activity, object], hto in "hashtags_objects",
+      on: hto.object_id == object.id,
+      as: :hto
+    )
+    |> where(
+      [activity, object, hto: hto],
+      (hto.hashtag_id in ^hashtag_ids and ^Constants.as_public() in activity.recipients) or
+        fragment("? && ?", ^recipients, activity.recipients)
+    )
+  end
+
   defp restrict_local(query, %{local_only: true}) do
     from(activity in query, where: activity.local == true)
   end
@@ -1363,7 +1405,7 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
       |> maybe_preload_report_notes(opts)
       |> maybe_set_thread_muted_field(opts)
       |> maybe_order(opts)
-      |> restrict_recipients(recipients, opts[:user])
+      |> restrict_recipients_or_hashtags(recipients, opts[:user], opts[:followed_hashtags])
       |> restrict_replies(opts)
       |> restrict_since(opts)
       |> restrict_local(opts)
@@ -1674,7 +1716,7 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
         {:error, e}
 
       {:error, {:reject, reason} = e} ->
-        Logger.info("Rejected user #{ap_id}: #{inspect(reason)}")
+        Logger.debug("Rejected user #{ap_id}: #{inspect(reason)}")
         {:error, e}
 
       {:error, e} ->