Merge remote-tracking branch 'pleroma/develop' into feature/disable-account

lib/pleroma/activity.ex

@@ -5,9 +5,10 @@
 defmodule Pleroma.Activity do
   use Ecto.Schema
 
-  alias Pleroma.Repo
   alias Pleroma.Activity
   alias Pleroma.Notification
+  alias Pleroma.Object
+  alias Pleroma.Repo
 
   import Ecto.Query
 
@@ -22,16 +23,53 @@ defmodule Pleroma.Activity do
     "Like" => "favourite"
   }
 
+  @mastodon_to_ap_notification_types for {k, v} <- @mastodon_notification_types,
+                                         into: %{},
+                                         do: {v, k}
+
   schema "activities" do
     field(:data, :map)
     field(:local, :boolean, default: true)
     field(:actor, :string)
-    field(:recipients, {:array, :string})
+    field(:recipients, {:array, :string}, default: [])
     has_many(:notifications, Notification, on_delete: :delete_all)
 
+    # Attention: this is a fake relation, don't try to preload it blindly and expect it to work!
+    # The foreign key is embedded in a jsonb field.
+    #
+    # To use it, you probably want to do an inner join and a preload:
+    #
+    # ```
+    # |> join(:inner, [activity], o in Object,
+    #      on: fragment("(?->>'id') = COALESCE((?)->'object'->> 'id', (?)->>'object')",
+    #        o.data, activity.data, activity.data))
+    # |> preload([activity, object], [object: object])
+    # ```
+    #
+    # As a convenience, Activity.with_preloaded_object() sets up an inner join and preload for the
+    # typical case.
+    has_one(:object, Object, on_delete: :nothing, foreign_key: :id)
+
     timestamps()
   end
 
+  def with_preloaded_object(query) do
+    query
+    |> join(
+      :inner,
+      [activity],
+      o in Object,
+      on:
+        fragment(
+          "(?->>'id') = COALESCE(?->'object'->>'id', ?->>'object')",
+          o.data,
+          activity.data,
+          activity.data
+        )
+    )
+    |> preload([activity, object], object: object)
+  end
+
   def get_by_ap_id(ap_id) do
     Repo.one(
       from(
@@ -41,6 +79,24 @@ defmodule Pleroma.Activity do
     )
   end
 
+  def get_by_ap_id_with_object(ap_id) do
+    Repo.one(
+      from(
+        activity in Activity,
+        where: fragment("(?)->>'id' = ?", activity.data, ^to_string(ap_id)),
+        left_join: o in Object,
+        on:
+          fragment(
+            "(?->>'id') = COALESCE(?->'object'->>'id', ?->>'object')",
+            o.data,
+            activity.data,
+            activity.data
+          ),
+        preload: [object: o]
+      )
+    )
+  end
+
   def get_by_id(id) do
     Activity
     |> where([a], a.id == ^id)
@@ -48,6 +104,22 @@ defmodule Pleroma.Activity do
     |> Repo.one()
   end
 
+  def get_by_id_with_object(id) do
+    from(activity in Activity,
+      where: activity.id == ^id,
+      inner_join: o in Object,
+      on:
+        fragment(
+          "(?->>'id') = COALESCE(?->'object'->>'id', ?->>'object')",
+          o.data,
+          activity.data,
+          activity.data
+        ),
+      preload: [object: o]
+    )
+    |> Repo.one()
+  end
+
   def by_object_ap_id(ap_id) do
     from(
       activity in Activity,
@@ -75,7 +147,7 @@ defmodule Pleroma.Activity do
     )
   end
 
-  def create_by_object_ap_id(ap_id) do
+  def create_by_object_ap_id(ap_id) when is_binary(ap_id) do
     from(
       activity in Activity,
       where:
@@ -89,6 +161,8 @@ defmodule Pleroma.Activity do
     )
   end
 
+  def create_by_object_ap_id(_), do: nil
+
   def get_all_create_by_object_ap_id(ap_id) do
     Repo.all(create_by_object_ap_id(ap_id))
   end
@@ -101,8 +175,39 @@ defmodule Pleroma.Activity do
 
   def get_create_by_object_ap_id(_), do: nil
 
-  def normalize(obj) when is_map(obj), do: Activity.get_by_ap_id(obj["id"])
-  def normalize(ap_id) when is_binary(ap_id), do: Activity.get_by_ap_id(ap_id)
+  def create_by_object_ap_id_with_object(ap_id) when is_binary(ap_id) do
+    from(
+      activity in Activity,
+      where:
+        fragment(
+          "coalesce((?)->'object'->>'id', (?)->>'object') = ?",
+          activity.data,
+          activity.data,
+          ^to_string(ap_id)
+        ),
+      where: fragment("(?)->>'type' = 'Create'", activity.data),
+      inner_join: o in Object,
+      on:
+        fragment(
+          "(?->>'id') = COALESCE(?->'object'->>'id', ?->>'object')",
+          o.data,
+          activity.data,
+          activity.data
+        ),
+      preload: [object: o]
+    )
+  end
+
+  def create_by_object_ap_id_with_object(_), do: nil
+
+  def get_create_by_object_ap_id_with_object(ap_id) do
+    ap_id
+    |> create_by_object_ap_id_with_object()
+    |> Repo.one()
+  end
+
+  def normalize(obj) when is_map(obj), do: get_by_ap_id_with_object(obj["id"])
+  def normalize(ap_id) when is_binary(ap_id), do: get_by_ap_id_with_object(ap_id)
   def normalize(_), do: nil
 
   def get_in_reply_to_activity(%Activity{data: %{"object" => %{"inReplyTo" => ap_id}}}) do
@@ -111,6 +216,19 @@ defmodule Pleroma.Activity do
 
   def get_in_reply_to_activity(_), do: nil
 
+  def delete_by_ap_id(id) when is_binary(id) do
+    by_object_ap_id(id)
+    |> select([u], u)
+    |> Repo.delete_all()
+    |> elem(1)
+    |> Enum.find(fn
+      %{data: %{"type" => "Create", "object" => %{"id" => ap_id}}} -> ap_id == id
+      _ -> nil
+    end)
+  end
+
+  def delete_by_ap_id(_), do: nil
+
   for {ap_type, type} <- @mastodon_notification_types do
     def mastodon_notification_type(%Activity{data: %{"type" => unquote(ap_type)}}),
       do: unquote(type)
@@ -118,6 +236,10 @@ defmodule Pleroma.Activity do
 
   def mastodon_notification_type(%Activity{}), do: nil
 
+  def from_mastodon_notification_type(type) do
+    Map.get(@mastodon_to_ap_notification_types, type)
+  end
+
   def all_by_actor_and_id(actor, status_ids \\ [])
   def all_by_actor_and_id(_actor, []), do: []
 
@@ -128,6 +250,52 @@ defmodule Pleroma.Activity do
     |> Repo.all()
   end
 
+  def increase_replies_count(id) do
+    Activity
+    |> where(id: ^id)
+    |> update([a],
+      set: [
+        data:
+          fragment(
+            """
+            jsonb_set(?, '{object, repliesCount}',
+              (coalesce((?->'object'->>'repliesCount')::int, 0) + 1)::varchar::jsonb, true)
+            """,
+            a.data,
+            a.data
+          )
+      ]
+    )
+    |> Repo.update_all([])
+    |> case do
+      {1, [activity]} -> activity
+      _ -> {:error, "Not found"}
+    end
+  end
+
+  def decrease_replies_count(id) do
+    Activity
+    |> where(id: ^id)
+    |> update([a],
+      set: [
+        data:
+          fragment(
+            """
+            jsonb_set(?, '{object, repliesCount}',
+              (greatest(0, (?->'object'->>'repliesCount')::int - 1))::varchar::jsonb, true)
+            """,
+            a.data,
+            a.data
+          )
+      ]
+    )
+    |> Repo.update_all([])
+    |> case do
+      {1, [activity]} -> activity
+      _ -> {:error, "Not found"}
+    end
+  end
+
   def restrict_disabled_users(query) do
     from(activity in query,
       where: