fetcher: move local object checking into a reusable function

[akkoma] / lib / pleroma / object / fetcher.ex

diff --git a/lib/pleroma/object/fetcher.ex b/lib/pleroma/object/fetcher.ex
index 2217d1eb302546ad937e3b6994746063cc80e9d0..4d71c91a80be38f5470690048495c3d4f8ba227c 100644 (file)
--- a/lib/pleroma/object/fetcher.ex
+++ b/lib/pleroma/object/fetcher.ex
@@ -6,19 +6,40 @@ defmodule Pleroma.Object.Fetcher do
   alias Pleroma.HTTP
   alias Pleroma.Object
   alias Pleroma.Object.Containment
+  alias Pleroma.Repo
   alias Pleroma.Signature
   alias Pleroma.Web.ActivityPub.InternalFetchActor
   alias Pleroma.Web.ActivityPub.Transmogrifier
-  alias Pleroma.Web.OStatus
 
   require Logger
+  require Pleroma.Constants
 
-  @spec reinject_object(map()) :: {:ok, Object.t()} | {:error, any()}
-  defp reinject_object(data) do
+  defp touch_changeset(changeset) do
+    updated_at =
+      NaiveDateTime.utc_now()
+      |> NaiveDateTime.truncate(:second)
+
+    Ecto.Changeset.put_change(changeset, :updated_at, updated_at)
+  end
+
+  defp maybe_reinject_internal_fields(data, %{data: %{} = old_data}) do
+    internal_fields = Map.take(old_data, Pleroma.Constants.object_internal_fields())
+
+    Map.merge(data, internal_fields)
+  end
+
+  defp maybe_reinject_internal_fields(data, _), do: data
+
+  @spec reinject_object(struct(), map()) :: {:ok, Object.t()} | {:error, any()}
+  defp reinject_object(struct, data) do
     Logger.debug("Reinjecting object #{data["id"]}")
 
     with data <- Transmogrifier.fix_object(data),
-         {:ok, object} <- Object.create(data) do
+         data <- maybe_reinject_internal_fields(data, struct),
+         changeset <- Object.change(struct, %{data: data}),
+         changeset <- touch_changeset(changeset),
+         {:ok, object} <- Repo.insert_or_update(changeset),
+         {:ok, object} <- Object.set_cache(object) do
       {:ok, object}
     else
       e ->
@@ -27,6 +48,17 @@ defmodule Pleroma.Object.Fetcher do
     end
   end
 
+  def refetch_object(%Object{data: %{"id" => id}} = object) do
+    with {:local, false} <- {:local, Object.local?(object)},
+         {:ok, data} <- fetch_and_contain_remote_object_from_id(id),
+         {:ok, object} <- reinject_object(object, data) do
+      {:ok, object}
+    else
+      {:local, true} -> {:ok, object}
+      e -> {:error, e}
+    end
+  end
+
   # TODO:
   # This will create a Create activity, which we need internally at the moment.
   def fetch_object_from_id(id, options \\ []) do
@@ -35,7 +67,8 @@ defmodule Pleroma.Object.Fetcher do
          {:normalize, nil} <- {:normalize, Object.normalize(data, false)},
          params <- prepare_activity_params(data),
          {:containment, :ok} <- {:containment, Containment.contain_origin(id, params)},
-         {:ok, activity} <- Transmogrifier.handle_incoming(params, options),
+         {:transmogrifier, {:ok, activity}} <-
+           {:transmogrifier, Transmogrifier.handle_incoming(params, options)},
          {:object, _data, %Object{} = object} <-
            {:object, data, Object.normalize(activity, false)} do
       {:ok, object}
@@ -43,11 +76,14 @@ defmodule Pleroma.Object.Fetcher do
       {:containment, _} ->
         {:error, "Object containment failed."}
 
-      {:error, {:reject, nil}} ->
+      {:transmogrifier, {:error, {:reject, nil}}} ->
         {:reject, nil}
 
+      {:transmogrifier, _} ->
+        {:error, "Transmogrifier failure."}
+
       {:object, data, nil} ->
-        reinject_object(data)
+        reinject_object(%Object{}, data)
 
       {:normalize, object = %Object{}} ->
         {:ok, object}
@@ -55,18 +91,12 @@ defmodule Pleroma.Object.Fetcher do
       {:fetch_object, %Object{} = object} ->
         {:ok, object}
 
-      _e ->
-        # Only fallback when receiving a fetch/normalization error with ActivityPub
-        Logger.info("Couldn't get object via AP, trying out OStatus fetching...")
+      {:fetch, {:error, error}} ->
+        {:error, error}
 
-        # FIXME: OStatus Object Containment?
-        case OStatus.fetch_activity_from_url(id) do
-          {:ok, [activity | _]} -> {:ok, Object.normalize(activity, false)}
-          e -> e
-        end
+      e ->
+        e
     end
-
-    # end
   end
 
   defp prepare_activity_params(data) do
@@ -84,7 +114,11 @@ defmodule Pleroma.Object.Fetcher do
     with {:ok, object} <- fetch_object_from_id(id, options) do
       object
     else
-      _e ->
+      {:error, %Tesla.Mock.Error{}} ->
+        nil
+
+      e ->
+        Logger.error("Error while fetching #{id}: #{inspect(e)}")
         nil
     end
   end
@@ -131,7 +165,7 @@ defmodule Pleroma.Object.Fetcher do
 
     Logger.debug("Fetch headers: #{inspect(headers)}")
 
-    with true <- String.starts_with?(id, "http"),
+    with {:scheme, true} <- {:scheme, String.starts_with?(id, "http")},
          {:ok, %{body: body, status: code}} when code in 200..299 <- HTTP.get(id, headers),
          {:ok, data} <- Jason.decode(body),
          :ok <- Containment.contain_origin_from_id(id, data) do
@@ -140,6 +174,12 @@ defmodule Pleroma.Object.Fetcher do
       {:ok, %{status: code}} when code in [404, 410] ->
         {:error, "Object has been deleted"}
 
+      {:scheme, _} ->
+        {:error, "Unsupported URI scheme"}
+
+      {:error, e} ->
+        {:error, e}
+
       e ->
         {:error, e}
     end