activitypub: allow is_public?() to work on any type of map representing an AS2 object

[akkoma] / lib / pleroma / web / activity_pub / activity_pub_controller.ex

diff --git a/lib/pleroma/web/activity_pub/activity_pub_controller.ex b/lib/pleroma/web/activity_pub/activity_pub_controller.ex
index 9f083d0a5ba530cd12d018896040263a104f1c41..7eed0a6006d86154400cfb50b69978ae281d1ac5 100644 (file)
--- a/lib/pleroma/web/activity_pub/activity_pub_controller.ex
+++ b/lib/pleroma/web/activity_pub/activity_pub_controller.ex
@@ -1,14 +1,15 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2018 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only
 
 defmodule Pleroma.Web.ActivityPub.ActivityPubController do
   use Pleroma.Web, :controller
-  alias Pleroma.{User, Object}
+  alias Pleroma.{Activity, User, Object}
   alias Pleroma.Web.ActivityPub.{ObjectView, UserView}
   alias Pleroma.Web.ActivityPub.ActivityPub
   alias Pleroma.Web.ActivityPub.Relay
   alias Pleroma.Web.ActivityPub.Utils
+  alias Pleroma.Web.ActivityPub.Transmogrifier
   alias Pleroma.Web.Federator
 
   require Logger
@@ -53,6 +54,49 @@ defmodule Pleroma.Web.ActivityPub.ActivityPubController do
     end
   end
 
+  def object_likes(conn, %{"uuid" => uuid, "page" => page}) do
+    with ap_id <- o_status_url(conn, :object, uuid),
+         %Object{} = object <- Object.get_cached_by_ap_id(ap_id),
+         {_, true} <- {:public?, ActivityPub.is_public?(object)},
+         likes <- Utils.get_object_likes(object) do
+      {page, _} = Integer.parse(page)
+
+      conn
+      |> put_resp_header("content-type", "application/activity+json")
+      |> json(ObjectView.render("likes.json", ap_id, likes, page))
+    else
+      {:public?, false} ->
+        {:error, :not_found}
+    end
+  end
+
+  def object_likes(conn, %{"uuid" => uuid}) do
+    with ap_id <- o_status_url(conn, :object, uuid),
+         %Object{} = object <- Object.get_cached_by_ap_id(ap_id),
+         {_, true} <- {:public?, ActivityPub.is_public?(object)},
+         likes <- Utils.get_object_likes(object) do
+      conn
+      |> put_resp_header("content-type", "application/activity+json")
+      |> json(ObjectView.render("likes.json", ap_id, likes))
+    else
+      {:public?, false} ->
+        {:error, :not_found}
+    end
+  end
+
+  def activity(conn, %{"uuid" => uuid}) do
+    with ap_id <- o_status_url(conn, :activity, uuid),
+         %Activity{} = activity <- Activity.normalize(ap_id),
+         {_, true} <- {:public?, ActivityPub.is_public?(activity)} do
+      conn
+      |> put_resp_header("content-type", "application/activity+json")
+      |> json(ObjectView.render("object.json", %{object: activity}))
+    else
+      {:public?, false} ->
+        {:error, :not_found}
+    end
+  end
+
   def following(conn, %{"nickname" => nickname, "page" => page}) do
     with %User{} = user <- User.get_cached_by_nickname(nickname),
          {:ok, user} <- Pleroma.Web.WebFinger.ensure_keys_present(user) do
@@ -164,13 +208,69 @@ defmodule Pleroma.Web.ActivityPub.ActivityPubController do
     end
   end
 
-  def update_outbox(%{assigns: %{user: user}} = conn, %{"nickname" => nickname} = params) do
+  def handle_user_activity(user, %{"type" => "Create"} = params) do
+    object =
+      params["object"]
+      |> Map.merge(Map.take(params, ["to", "cc"]))
+      |> Map.put("attributedTo", user.ap_id())
+      |> Transmogrifier.fix_object()
+
+    ActivityPub.create(%{
+      to: params["to"],
+      actor: user,
+      context: object["context"],
+      object: object,
+      additional: Map.take(params, ["cc"])
+    })
+  end
+
+  def handle_user_activity(user, %{"type" => "Delete"} = params) do
+    with %Object{} = object <- Object.normalize(params["object"]),
+         true <- user.info.is_moderator || user.ap_id == object.data["actor"],
+         {:ok, delete} <- ActivityPub.delete(object) do
+      {:ok, delete}
+    else
+      _ -> {:error, "Can't delete object"}
+    end
+  end
+
+  def handle_user_activity(user, %{"type" => "Like"} = params) do
+    with %Object{} = object <- Object.normalize(params["object"]),
+         {:ok, activity, _object} <- ActivityPub.like(user, object) do
+      {:ok, activity}
+    else
+      _ -> {:error, "Can't like object"}
+    end
+  end
+
+  def handle_user_activity(_, _) do
+    {:error, "Unhandled activity type"}
+  end
+
+  def update_outbox(
+        %{assigns: %{user: user}} = conn,
+        %{"nickname" => nickname} = params
+      ) do
     if nickname == user.nickname do
-      Logger.info("update outbox #{inspect(params)}")
+      actor = user.ap_id()
 
-      conn
-      |> put_status(:created)
-      |> json("ok!")
+      params =
+        params
+        |> Map.drop(["id"])
+        |> Map.put("actor", actor)
+        |> Transmogrifier.fix_addressing()
+
+      with {:ok, %Activity{} = activity} <- handle_user_activity(user, params) do
+        conn
+        |> put_status(:created)
+        |> put_resp_header("location", activity.data["id"])
+        |> json(activity.data)
+      else
+        {:error, message} ->
+          conn
+          |> put_status(:bad_request)
+          |> json(message)
+      end
     else
       conn
       |> put_status(:forbidden)