Use follower address in user entry.

[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 94e52a0fb0bd6e758fac77b8d3a629efc8ce05c1..69a2d8f4ef23c18d5d59eff3b17e1b43af602ea7 100644 (file)
--- a/lib/pleroma/web/activity_pub/activity_pub.ex
+++ b/lib/pleroma/web/activity_pub/activity_pub.ex
@@ -1,22 +1,138 @@
 defmodule Pleroma.Web.ActivityPub.ActivityPub do
-  alias Pleroma.Repo
-  alias Pleroma.Activity
+  alias Pleroma.{Activity, Repo, Object, Upload, User, Web}
+  alias Ecto.{Changeset, UUID}
   import Ecto.Query
+  import Pleroma.Web.ActivityPub.Utils
+  require Logger
 
-  def insert(map) when is_map(map) do
-    Repo.insert(%Activity{data: map})
+  def insert(map, local \\ true) when is_map(map) do
+    with nil <- Activity.get_by_ap_id(map["id"]),
+         map <- lazy_put_activity_defaults(map),
+         :ok <- insert_full_object(map) do
+      Repo.insert(%Activity{data: map, local: local})
+    else
+      %Activity{} = activity -> {:ok, activity}
+      error -> {:error, error}
+    end
   end
 
-  def fetch_public_activities(opts \\ %{}) do
-    since_id = opts[:since_id] || 0
+  def create(to, actor, context, object, additional \\ %{}, published \\ nil, local \\ true) do
+    with create_data <- make_create_data(%{to: to, actor: actor, published: published, context: context, object: object}, additional),
+         {:ok, activity} <- insert(create_data, local),
+         :ok <- maybe_federate(activity) do
+      {:ok, activity}
+    end
+  end
+
+  # TODO: This is weird, maybe we shouldn't check here if we can make the activity.
+  def like(%User{ap_id: ap_id} = user, %Object{data: %{"id" => id}} = object, activity_id \\ nil, local \\ true) do
+    with nil <- get_existing_like(ap_id, object),
+         like_data <- make_like_data(user, object, activity_id),
+         {:ok, activity} <- insert(like_data, local),
+         {:ok, object} <- add_like_to_object(activity, object),
+         :ok <- maybe_federate(activity) do
+      {:ok, activity, object}
+    else
+      %Activity{} = activity -> {:ok, activity, object}
+      error -> {:error, error}
+    end
+  end
+
+  def unlike(%User{} = actor, %Object{} = object) do
+    with %Activity{} = activity <- get_existing_like(actor.ap_id, object),
+         {:ok, _activity} <- Repo.delete(activity),
+         {:ok, object} <- remove_like_from_object(activity, object) do
+      {:ok, object}
+      else _e -> {:ok, object}
+    end
+  end
+
+  def announce(%User{ap_id: ap_id} = user, %Object{data: %{"id" => id}} = object, activity_id \\ nil, local \\ true) do
+    with announce_data <- make_announce_data(user, object, activity_id),
+         {:ok, activity} <- insert(announce_data, local),
+         {:ok, object} <- add_announce_to_object(activity, object),
+         :ok <- maybe_federate(activity) do
+      {:ok, activity, object}
+    else
+      error -> {:error, error}
+    end
+  end
 
+  def follow(follower, followed, activity_id \\ nil, local \\ true) do
+    with data <- make_follow_data(follower, followed, activity_id),
+         {:ok, activity} <- insert(data, local),
+         :ok <- maybe_federate(activity) do
+      {:ok, activity}
+    end
+  end
+
+  def unfollow(follower, followed, local \\ true) do
+    with %Activity{} = follow_activity <- fetch_latest_follow(follower, followed),
+         unfollow_data <- make_unfollow_data(follower, followed, follow_activity),
+         {:ok, activity} <- insert(unfollow_data, local),
+         :ok, maybe_federate(activity) do
+      {:ok, activity}
+    end
+  end
+
+  def fetch_activities_for_context(context) do
     query = from activity in Activity,
-      where: fragment(~s(? @> '{"to": ["https://www.w3.org/ns/activitystreams#Public"]}'), activity.data),
-      where: activity.id > ^since_id,
+      where: fragment("? @> ?", activity.data, ^%{ type: "Create", context: context }),
+      order_by: [desc: :inserted_at]
+    Repo.all(query)
+  end
+
+  def fetch_public_activities(opts \\ %{}) do
+    public = ["https://www.w3.org/ns/activitystreams#Public"]
+    fetch_activities(public, opts)
+  end
+
+  defp restrict_since(query, %{"since_id" => since_id}) do
+    from activity in query, where: activity.id > ^since_id
+  end
+  defp restrict_since(query, _), do: query
+
+  defp restrict_recipients(query, recipients) do
+    Enum.reduce(recipients, query, fn (recipient, q) ->
+      map = %{ to: [recipient] }
+      from activity in q,
+      or_where: fragment(~s(? @> ?), activity.data, ^map)
+    end)
+  end
+
+  defp restrict_local(query, %{"local_only" => true}) do
+    from activity in query, where: activity.local == true
+  end
+  defp restrict_local(query, _), do: query
+
+  defp restrict_max(query, %{"max_id" => max_id}) do
+    from activity in query, where: activity.id < ^max_id
+  end
+  defp restrict_max(query, _), do: query
+
+  defp restrict_actor(query, %{"actor_id" => actor_id}) do
+    from activity in query,
+      where: fragment("?->>'actor' = ?", activity.data, ^actor_id)
+  end
+  defp restrict_actor(query, _), do: query
+
+  def fetch_activities(recipients, opts \\ %{}) do
+    base_query = from activity in Activity,
       limit: 20,
       order_by: [desc: :inserted_at]
 
-    Repo.all(query)
+    base_query
+    |> restrict_recipients(recipients)
+    |> restrict_since(opts)
+    |> restrict_local(opts)
+    |> restrict_max(opts)
+    |> restrict_actor(opts)
+    |> Repo.all
     |> Enum.reverse
   end
+
+  def upload(file) do
+    data = Upload.store(file)
+    Repo.insert(%Object{data: data})
+  end
 end