[#3213] Fixed `hashtags.name` lookup (must use `citext` type to do index scan). Fixed...
[akkoma] / lib / pleroma / web / activity_pub / activity_pub.ex
index fd0144aadae583d77b4f4330f04527135d12883d..e012f2779e9be2820d609f8276c6c004d0b86d2a 100644 (file)
@@ -377,6 +377,7 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
          :ok <-
            maybe_federate(stripped_activity) do
       User.all_superusers()
+      |> Enum.filter(fn user -> user.ap_id != actor end)
       |> Enum.filter(fn user -> not is_nil(user.email) end)
       |> Enum.each(fn superuser ->
         superuser
@@ -591,7 +592,21 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
     |> Enum.reverse()
   end
 
-  def fetch_user_activities(user, reading_user, params \\ %{}) do
+  def fetch_user_activities(user, reading_user, params \\ %{})
+
+  def fetch_user_activities(user, reading_user, %{total: true} = params) do
+    result = fetch_activities_for_user(user, reading_user, params)
+
+    Keyword.put(result, :items, Enum.reverse(result[:items]))
+  end
+
+  def fetch_user_activities(user, reading_user, params) do
+    user
+    |> fetch_activities_for_user(reading_user, params)
+    |> Enum.reverse()
+  end
+
+  defp fetch_activities_for_user(user, reading_user, params) do
     params =
       params
       |> Map.put(:type, ["Create", "Announce"])
@@ -616,10 +631,20 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
     }
     |> user_activities_recipients()
     |> fetch_activities(params, pagination_type)
-    |> Enum.reverse()
+  end
+
+  def fetch_statuses(reading_user, %{total: true} = params) do
+    result = fetch_activities_for_reading_user(reading_user, params)
+    Keyword.put(result, :items, Enum.reverse(result[:items]))
   end
 
   def fetch_statuses(reading_user, params) do
+    reading_user
+    |> fetch_activities_for_reading_user(params)
+    |> Enum.reverse()
+  end
+
+  defp fetch_activities_for_reading_user(reading_user, params) do
     params = Map.put(params, :type, ["Create", "Announce"])
 
     %{
@@ -628,7 +653,6 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
     }
     |> user_activities_recipients()
     |> fetch_activities(params, :offset)
-    |> Enum.reverse()
   end
 
   defp user_activities_recipients(%{godmode: true}), do: []
@@ -673,7 +697,9 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
     raise_on_missing_preload()
   end
 
-  defp restrict_embedded_tag_all(query, %{tag_all: tag_all}) when is_list(tag_all) do
+  defp restrict_embedded_tag_all(query, %{tag_all: [_ | _] = tag_all}) do
+    tag_all = Enum.map(tag_all, &String.downcase/1)
+
     from(
       [_activity, object] in query,
       where: fragment("(?)->'tag' \\?& (?)", object.data, ^tag_all)
@@ -690,10 +716,12 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
     raise_on_missing_preload()
   end
 
-  defp restrict_embedded_tag_any(query, %{tag: tag}) when is_list(tag) do
+  defp restrict_embedded_tag_any(query, %{tag: [_ | _] = tag_any}) do
+    tag_any = Enum.map(tag_any, &String.downcase/1)
+
     from(
       [_activity, object] in query,
-      where: fragment("(?)->'tag' \\?| (?)", object.data, ^tag)
+      where: fragment("(?)->'tag' \\?| (?)", object.data, ^tag_any)
     )
   end
 
@@ -707,8 +735,9 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
     raise_on_missing_preload()
   end
 
-  defp restrict_embedded_tag_reject_any(query, %{tag_reject: tag_reject})
-       when is_list(tag_reject) do
+  defp restrict_embedded_tag_reject_any(query, %{tag_reject: [_ | _] = tag_reject}) do
+    tag_reject = Enum.map(tag_reject, &String.downcase/1)
+
     from(
       [_activity, object] in query,
       where: fragment("not (?)->'tag' \\?| (?)", object.data, ^tag_reject)
@@ -722,86 +751,88 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
 
   defp restrict_embedded_tag_reject_any(query, _), do: query
 
-  # Groups by all bindings to allow aggregation on hashtags
-  defp group_by_all_bindings(query) do
-    # Expecting named bindings: :object, :bookmark, :thread_mute, :report_note
-    cond do
-      Enum.count(query.aliases) == 4 ->
-        from([a, o, b3, b4, b5] in query, group_by: [a.id, o.id, b3.id, b4.id, b5.id])
-
-      Enum.count(query.aliases) == 3 ->
-        from([a, o, b3, b4] in query, group_by: [a.id, o.id, b3.id, b4.id])
-
-      Enum.count(query.aliases) == 2 ->
-        from([a, o, b3] in query, group_by: [a.id, o.id, b3.id])
-
-      true ->
-        from([a, o] in query, group_by: [a.id, o.id])
-    end
+  defp restrict_hashtag_all(_query, %{tag_all: _tag, skip_preload: true}) do
+    raise_on_missing_preload()
   end
 
-  defp restrict_hashtag_reject_any(_query, %{tag_reject: _tag_reject, skip_preload: true}) do
-    raise_on_missing_preload()
+  defp restrict_hashtag_all(query, %{tag_all: [single_tag]}) do
+    restrict_hashtag_any(query, %{tag: single_tag})
   end
 
-  defp restrict_hashtag_reject_any(query, %{tag_reject: tags_reject}) when is_list(tags_reject) do
-    query
-    |> group_by_all_bindings()
-    |> join(:left, [_activity, object], hashtag in assoc(object, :hashtags), as: :hashtag)
-    |> having(
-      [hashtag: hashtag],
-      fragment("not(array_agg(?) && (?))", hashtag.name, ^tags_reject)
+  defp restrict_hashtag_all(query, %{tag_all: [_ | _] = tags}) do
+    from(
+      [_activity, object] in query,
+      where:
+        fragment(
+          """
+          (SELECT array_agg(hashtags.name) FROM hashtags JOIN hashtags_objects
+            ON hashtags_objects.hashtag_id = hashtags.id WHERE hashtags.name = ANY(?::citext[])
+              AND hashtags_objects.object_id = ?) @> ?
+          """,
+          ^tags,
+          object.id,
+          ^tags
+        )
     )
   end
 
-  defp restrict_hashtag_reject_any(query, %{tag_reject: tag_reject}) when is_binary(tag_reject) do
-    restrict_hashtag_reject_any(query, %{tag_reject: [tag_reject]})
+  defp restrict_hashtag_all(query, %{tag_all: tag}) when is_binary(tag) do
+    restrict_hashtag_all(query, %{tag_all: [tag]})
   end
 
-  defp restrict_hashtag_reject_any(query, _), do: query
+  defp restrict_hashtag_all(query, _), do: query
 
-  defp restrict_hashtag_all(_query, %{tag_all: _tag, skip_preload: true}) do
+  defp restrict_hashtag_any(_query, %{tag: _tag, skip_preload: true}) do
     raise_on_missing_preload()
   end
 
-  defp restrict_hashtag_all(query, %{tag_all: tags}) when is_list(tags) do
-    Enum.reduce(
-      tags,
-      query,
-      fn tag, acc -> restrict_hashtag_any(acc, %{tag: tag}) end
+  defp restrict_hashtag_any(query, %{tag: [_ | _] = tags}) do
+    from(
+      [_activity, object] in query,
+      where:
+        fragment(
+          """
+          EXISTS (SELECT 1 FROM hashtags JOIN hashtags_objects
+            ON hashtags_objects.hashtag_id = hashtags.id WHERE hashtags.name = ANY(?::citext[])
+              AND hashtags_objects.object_id = ? LIMIT 1)
+          """,
+          ^tags,
+          object.id
+        )
     )
   end
 
-  defp restrict_hashtag_all(query, %{tag_all: tag}) when is_binary(tag) do
-    restrict_hashtag_any(query, %{tag: tag})
+  defp restrict_hashtag_any(query, %{tag: tag}) when is_binary(tag) do
+    restrict_hashtag_any(query, %{tag: [tag]})
   end
 
-  defp restrict_hashtag_all(query, _), do: query
+  defp restrict_hashtag_any(query, _), do: query
 
-  defp restrict_hashtag_any(_query, %{tag: _tag, skip_preload: true}) do
+  defp restrict_hashtag_reject_any(_query, %{tag_reject: _tag_reject, skip_preload: true}) do
     raise_on_missing_preload()
   end
 
-  defp restrict_hashtag_any(query, %{tag: tags}) when is_list(tags) do
-    query =
-      from(
-        [_activity, object] in query,
-        join: hashtag in assoc(object, :hashtags),
-        where: hashtag.name in ^tags
-      )
-
-    if length(tags) > 1 do
-      distinct(query, [activity], true)
-    else
-      query
-    end
+  defp restrict_hashtag_reject_any(query, %{tag_reject: [_ | _] = tags_reject}) do
+    from(
+      [_activity, object] in query,
+      where:
+        fragment(
+          """
+          NOT EXISTS (SELECT 1 FROM hashtags JOIN hashtags_objects
+            ON hashtags_objects.hashtag_id = hashtags.id WHERE hashtags.name = ANY(?::citext[])
+              AND hashtags_objects.object_id = ? LIMIT 1)
+          """,
+          ^tags_reject,
+          object.id
+        )
+    )
   end
 
-  defp restrict_hashtag_any(query, %{tag: tag}) when is_binary(tag) do
-    restrict_hashtag_any(query, %{tag: [tag]})
+  defp restrict_hashtag_reject_any(query, %{tag_reject: tag_reject}) when is_binary(tag_reject) do
+    restrict_hashtag_reject_any(query, %{tag_reject: [tag_reject]})
   end
 
-  defp restrict_hashtag_any(query, _), do: query
+  defp restrict_hashtag_reject_any(query, _), do: query
 
   defp raise_on_missing_preload do
     raise "Can't use the child object without preloading!"
@@ -827,6 +858,12 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
 
   defp restrict_local(query, _), do: query
 
+  defp restrict_remote(query, %{remote: true}) do
+    from(activity in query, where: activity.local == false)
+  end
+
+  defp restrict_remote(query, _), do: query
+
   defp restrict_actor(query, %{actor_id: actor_id}) do
     from(activity in query, where: activity.actor == ^actor_id)
   end
@@ -1201,6 +1238,7 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
       |> restrict_replies(opts)
       |> restrict_since(opts)
       |> restrict_local(opts)
+      |> restrict_remote(opts)
       |> restrict_actor(opts)
       |> restrict_type(opts)
       |> restrict_state(opts)
@@ -1223,7 +1261,7 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
       |> exclude_invisible_actors(opts)
       |> exclude_visibility(opts)
 
-    if Config.improved_hashtag_timeline() do
+    if Config.get([:database, :improved_hashtag_timeline]) do
       query
       |> restrict_hashtag_any(opts)
       |> restrict_hashtag_all(opts)