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[akkoma] / lib / pleroma / object.ex

diff --git a/lib/pleroma/object.ex b/lib/pleroma/object.ex
index 168843bd97a34e601594cc413e5c7f9172b9493a..e2b64872785dfca64084526243028e235951d97d 100644 (file)
--- a/lib/pleroma/object.ex
+++ b/lib/pleroma/object.ex
@@ -1,29 +1,93 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2018 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
 defmodule Pleroma.Object do
   use Ecto.Schema
-  alias Pleroma.{Repo, Object}
-  import Ecto.Query
+  alias Pleroma.{Repo, Object, User, Activity, ObjectTombstone}
+  import Ecto.{Query, Changeset}
 
   schema "objects" do
-    field :data, :map
+    field(:data, :map)
 
     timestamps()
   end
 
+  def create(data) do
+    Object.change(%Object{}, %{data: data})
+    |> Repo.insert()
+  end
+
+  def change(struct, params \\ %{}) do
+    struct
+    |> cast(params, [:data])
+    |> validate_required([:data])
+    |> unique_constraint(:ap_id, name: :objects_unique_apid_index)
+  end
+
+  def get_by_ap_id(nil), do: nil
+
   def get_by_ap_id(ap_id) do
-    Repo.one(from object in Object,
-      where: fragment("? @> ?", object.data, ^%{id: ap_id}))
+    Repo.one(from(object in Object, where: fragment("(?)->>'id' = ?", object.data, ^ap_id)))
   end
 
-  def get_cached_by_ap_id(ap_id) do
-    if Mix.env == :test do
+  def normalize(obj) when is_map(obj), do: Object.get_by_ap_id(obj["id"])
+  def normalize(ap_id) when is_binary(ap_id), do: Object.get_by_ap_id(ap_id)
+  def normalize(_), do: nil
+
+  # Owned objects can only be mutated by their owner
+  def authorize_mutation(%Object{data: %{"actor" => actor}}, %User{ap_id: ap_id}),
+    do: actor == ap_id
+
+  # Legacy objects can be mutated by anybody
+  def authorize_mutation(%Object{}, %User{}), do: true
+
+  if Mix.env() == :test do
+    def get_cached_by_ap_id(ap_id) do
       get_by_ap_id(ap_id)
-    else
+    end
+  else
+    def get_cached_by_ap_id(ap_id) do
       key = "object:#{ap_id}"
-      Cachex.get!(:user_cache, key, fallback: fn(_) -> get_by_ap_id(ap_id) end)
+
+      Cachex.fetch!(:object_cache, key, fn _ ->
+        object = get_by_ap_id(ap_id)
+
+        if object do
+          {:commit, object}
+        else
+          {:ignore, object}
+        end
+      end)
     end
   end
 
   def context_mapping(context) do
-    %Object{data: %{"id" => context}}
+    Object.change(%Object{}, %{data: %{"id" => context}})
+  end
+
+  def make_tombstone(%Object{data: %{"id" => id, "type" => type}}, deleted \\ DateTime.utc_now()) do
+    %ObjectTombstone{
+      id: id,
+      formerType: type,
+      deleted: deleted
+    }
+    |> Map.from_struct()
+  end
+
+  def swap_object_with_tombstone(object) do
+    tombstone = make_tombstone(object)
+
+    object
+    |> Object.change(%{data: tombstone})
+    |> Repo.update()
+  end
+
+  def delete(%Object{data: %{"id" => id}} = object) do
+    with {:ok, _obj} = swap_object_with_tombstone(object),
+         Repo.delete_all(Activity.all_non_create_by_object_ap_id_q(id)),
+         {:ok, true} <- Cachex.del(:object_cache, "object:#{id}") do
+      {:ok, object}
+    end
   end
 end